<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by Fujitsu XWand 7.0.0025  (0018_w_27) -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd http://www.xbrl.org/2004/ref ref-2004-08-10.xsd" xmlns:ref="http://www.xbrl.org/2004/ref" xmlns:ipp-gen="http://www.cnmv.es/ipp/gen/1-2005/2005-06-30">
  <referenceLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DerechosBienesRegimenArrendamientoFinanciero" xlink:label="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_0" xlink:title="reference_DerechosBienesRegimenArrendamientoFinanciero"/>
    <reference xlink:type="resource" xlink:label="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DerechosBienesRegimenArrendamientoFinanciero" id="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>II.1.</ref:Subparagraph>
      <ref:Note>0221</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_0" xlink:to="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_1" xlink:title="reference: DerechosBienesRegimenArrendamientoFinanciero to reference_DerechosBienesRegimenArrendamientoFinanciero"/>
    <reference xlink:type="resource" xlink:label="reference_DerechosBienesRegimenArrendamientoFinanciero_1085436576894_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DerechosBienesRegimenArrendamientoFinanciero" id="reference_DerechosBienesRegimenArrendamientoFinanciero_1085436576894_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>II.1.</ref:Subparagraph>
      <ref:Note>1221</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DerechosBienesRegimenArrendamientoFinanciero_1085435621039_0" xlink:to="reference_DerechosBienesRegimenArrendamientoFinanciero_1085436576894_0" xlink:title="reference: DerechosBienesRegimenArrendamientoFinanciero to reference_DerechosBienesRegimenArrendamientoFinanciero"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_OtroInmovilizadoInmaterial" xlink:label="reference_OtroInmovilizadoInmaterial_1086277860823_0" xlink:title="reference_OtroInmovilizadoInmaterial"/>
    <reference xlink:type="resource" xlink:label="reference_OtroInmovilizadoInmaterial_1086277860823_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtroInmovilizadoInmaterial" id="reference_OtroInmovilizadoInmaterial_1086277860823_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>II.2.</ref:Subparagraph>
      <ref:Note>0222</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtroInmovilizadoInmaterial_1086277860823_0" xlink:to="reference_OtroInmovilizadoInmaterial_1086277860823_1" xlink:title="reference: OtroInmovilizadoInmaterial to reference_OtroInmovilizadoInmaterial"/>
    <reference xlink:type="resource" xlink:label="reference_OtroInmovilizadoInmaterial_1086278161165_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtroInmovilizadoInmaterial" id="reference_OtroInmovilizadoInmaterial_1086278161165_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>II.2.</ref:Subparagraph>
      <ref:Note>1222</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtroInmovilizadoInmaterial_1086277860823_0" xlink:to="reference_OtroInmovilizadoInmaterial_1086278161165_0" xlink:title="reference: OtroInmovilizadoInmaterial to reference_OtroInmovilizadoInmaterial"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DeudoresOperacionesTraficoLargoPlazo" xlink:label="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_0" xlink:title="reference_DeudoresOperacionesTraficoLargoPlazo"/>
    <reference xlink:type="resource" xlink:label="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DeudoresOperacionesTraficoLargoPlazo" id="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>VI.</ref:Subparagraph>
      <ref:Note>1255</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_0" xlink:to="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_1" xlink:title="reference: DeudoresOperacionesTraficoLargoPlazo to reference_DeudoresOperacionesTraficoLargoPlazo"/>
    <reference xlink:type="resource" xlink:label="reference_DeudoresOperacionesTraficoLargoPlazo_1086278620345_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DeudoresOperacionesTraficoLargoPlazo" id="reference_DeudoresOperacionesTraficoLargoPlazo_1086278620345_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Subparagraph>VI.</ref:Subparagraph>
      <ref:Note>0255</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DeudoresOperacionesTraficoLargoPlazo_1086278492421_0" xlink:to="reference_DeudoresOperacionesTraficoLargoPlazo_1086278620345_0" xlink:title="reference: DeudoresOperacionesTraficoLargoPlazo to reference_DeudoresOperacionesTraficoLargoPlazo"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_Inmovilizado" xlink:label="reference_Inmovilizado_1086278915039_0" xlink:title="reference_Inmovilizado"/>
    <reference xlink:type="resource" xlink:label="reference_Inmovilizado_1086278915039_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_Inmovilizado" id="reference_Inmovilizado_1086278915039_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Note>0260</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_Inmovilizado_1086278915039_0" xlink:to="reference_Inmovilizado_1086278915039_1" xlink:title="reference: Inmovilizado to reference_Inmovilizado"/>
    <reference xlink:type="resource" xlink:label="reference_Inmovilizado_1086279078364_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_Inmovilizado" id="reference_Inmovilizado_1086279078364_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>B)</ref:Paragraph>
      <ref:Note>1260</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_Inmovilizado_1086278915039_0" xlink:to="reference_Inmovilizado_1086279078364_0" xlink:title="reference: Inmovilizado to reference_Inmovilizado"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DividendosCuentaEntregadosEjercicio" xlink:label="reference_DividendosCuentaEntregadosEjercicio_1086279280164_0" xlink:title="reference_DividendosCuentaEntregadosEjercicio"/>
    <reference xlink:type="resource" xlink:label="reference_DividendosCuentaEntregadosEjercicio_1086279280164_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DividendosCuentaEntregadosEjercicio" id="reference_DividendosCuentaEntregadosEjercicio_1086279280164_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>A)</ref:Paragraph>
      <ref:Subparagraph>VI.</ref:Subparagraph>
      <ref:Note>1550</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DividendosCuentaEntregadosEjercicio_1086279280164_0" xlink:to="reference_DividendosCuentaEntregadosEjercicio_1086279280164_1" xlink:title="reference: DividendosCuentaEntregadosEjercicio to reference_DividendosCuentaEntregadosEjercicio"/>
    <reference xlink:type="resource" xlink:label="reference_DividendosCuentaEntregadosEjercicio_1086279438351_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DividendosCuentaEntregadosEjercicio" id="reference_DividendosCuentaEntregadosEjercicio_1086279438351_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>A)</ref:Paragraph>
      <ref:Subparagraph>V.</ref:Subparagraph>
      <ref:Note>0550</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DividendosCuentaEntregadosEjercicio_1086279280164_0" xlink:to="reference_DividendosCuentaEntregadosEjercicio_1086279438351_0" xlink:title="reference: DividendosCuentaEntregadosEjercicio to reference_DividendosCuentaEntregadosEjercicio"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ProvisionesParaRiesgosGastos" xlink:label="reference_ProvisionesParaRiesgosGastos_1086279689823_0" xlink:title="reference_ProvisionesParaRiesgosGastos"/>
    <reference xlink:type="resource" xlink:label="reference_ProvisionesParaRiesgosGastos_1086279689823_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ProvisionesParaRiesgosGastos" id="reference_ProvisionesParaRiesgosGastos_1086279689823_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11644</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>C)</ref:Paragraph>
      <ref:Note>0600</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ProvisionesParaRiesgosGastos_1086279689823_0" xlink:to="reference_ProvisionesParaRiesgosGastos_1086279689823_1" xlink:title="reference: ProvisionesParaRiesgosGastos to reference_ProvisionesParaRiesgosGastos"/>
    <reference xlink:type="resource" xlink:label="reference_ProvisionesParaRiesgosGastos_1086279879195_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ProvisionesParaRiesgosGastos" id="reference_ProvisionesParaRiesgosGastos_1086279879195_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>IV.</ref:Subsection>
      <ref:Paragraph>E)</ref:Paragraph>
      <ref:Note>1600</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ProvisionesParaRiesgosGastos_1086279689823_0" xlink:to="reference_ProvisionesParaRiesgosGastos_1086279879195_0" xlink:title="reference: ProvisionesParaRiesgosGastos to reference_ProvisionesParaRiesgosGastos"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ValorTotalProduccion" xlink:label="reference_ValorTotalProduccion_1086280118059_0" xlink:title="reference_ValorTotalProduccion"/>
    <reference xlink:type="resource" xlink:label="reference_ValorTotalProduccion_1086280118059_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ValorTotalProduccion" id="reference_ValorTotalProduccion_1086280118059_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0830</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ValorTotalProduccion_1086280118059_0" xlink:to="reference_ValorTotalProduccion_1086280118059_1" xlink:title="reference: ValorTotalProduccion to reference_ValorTotalProduccion"/>
    <reference xlink:type="resource" xlink:label="reference_ValorTotalProduccion_1086280336763_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ValorTotalProduccion" id="reference_ValorTotalProduccion_1086280336763_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1830</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ValorTotalProduccion_1086280118059_0" xlink:to="reference_ValorTotalProduccion_1086280336763_0" xlink:title="reference: ValorTotalProduccion to reference_ValorTotalProduccion"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ComprasNetas" xlink:label="reference_ComprasNetas_1086280470005_0" xlink:title="reference_ComprasNetas"/>
    <reference xlink:type="resource" xlink:label="reference_ComprasNetas_1086280470005_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ComprasNetas" id="reference_ComprasNetas_1086280470005_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1840</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ComprasNetas_1086280470005_0" xlink:to="reference_ComprasNetas_1086280470005_1" xlink:title="reference: ComprasNetas to reference_ComprasNetas"/>
    <reference xlink:type="resource" xlink:label="reference_ComprasNetas_1086280641591_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ComprasNetas" id="reference_ComprasNetas_1086280641591_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0840</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ComprasNetas_1086280470005_0" xlink:to="reference_ComprasNetas_1086280641591_0" xlink:title="reference: ComprasNetas to reference_ComprasNetas"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles" xlink:label="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_0" xlink:title="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles" id="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0850</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_0" xlink:to="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_1" xlink:title="reference: VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles to reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280991184_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles" id="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280991184_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1850</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280826347_0" xlink:to="reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles_1086280991184_0" xlink:title="reference: VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles to reference_VariacionExistenciasMercaderiasMateriasPrimasOtrasMateriasConsumibles"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_GastosExternosExplotacion" xlink:label="reference_GastosExternosExplotacion_1086281108112_0" xlink:title="reference_GastosExternosExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_GastosExternosExplotacion_1086281108112_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_GastosExternosExplotacion" id="reference_GastosExternosExplotacion_1086281108112_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1860</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_GastosExternosExplotacion_1086281108112_0" xlink:to="reference_GastosExternosExplotacion_1086281108112_1" xlink:title="reference: GastosExternosExplotacion to reference_GastosExternosExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_GastosExternosExplotacion_1086281222997_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_GastosExternosExplotacion" id="reference_GastosExternosExplotacion_1086281222997_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0860</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_GastosExternosExplotacion_1086281108112_0" xlink:to="reference_GastosExternosExplotacion_1086281222997_0" xlink:title="reference: GastosExternosExplotacion to reference_GastosExternosExplotacion"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ValorAniadidoAjustado" xlink:label="reference_ValorAñadidoAjustado_1086281321850_0" xlink:title="reference_ValorAñadidoAjustado"/>
    <reference xlink:type="resource" xlink:label="reference_ValorAñadidoAjustado_1086281321850_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ValorAñadidoAjustado" id="reference_ValorAñadidoAjustado_1086281321850_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0870</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ValorAñadidoAjustado_1086281321850_0" xlink:to="reference_ValorAñadidoAjustado_1086281321850_1" xlink:title="reference: ValorAñadidoAjustado to reference_ValorAñadidoAjustado"/>
    <reference xlink:type="resource" xlink:label="reference_ValorAñadidoAjustado_1086281459067_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ValorAñadidoAjustado" id="reference_ValorAñadidoAjustado_1086281459067_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1870</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ValorAñadidoAjustado_1086281321850_0" xlink:to="reference_ValorAñadidoAjustado_1086281459067_0" xlink:title="reference: ValorAñadidoAjustado to reference_ValorAñadidoAjustado"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_OtrosGastosIngresos" xlink:label="reference_OtrosGastosIngresos_1086282006254_0" xlink:title="reference_OtrosGastosIngresos"/>
    <reference xlink:type="resource" xlink:label="reference_OtrosGastosIngresos_1086282006254_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtrosGastosIngresos" id="reference_OtrosGastosIngresos_1086282006254_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1880</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtrosGastosIngresos_1086282006254_0" xlink:to="reference_OtrosGastosIngresos_1086282006254_1" xlink:title="reference: OtrosGastosIngresos to reference_OtrosGastosIngresos"/>
    <reference xlink:type="resource" xlink:label="reference_OtrosGastosIngresos_1086282138283_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtrosGastosIngresos" id="reference_OtrosGastosIngresos_1086282138283_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0880</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtrosGastosIngresos_1086282006254_0" xlink:to="reference_OtrosGastosIngresos_1086282138283_0" xlink:title="reference: OtrosGastosIngresos to reference_OtrosGastosIngresos"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadoBrutoExplotacion" xlink:label="reference_ResultadoBrutoExplotacion_1086282241993_0" xlink:title="reference_ResultadoBrutoExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoBrutoExplotacion_1086282241993_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoBrutoExplotacion" id="reference_ResultadoBrutoExplotacion_1086282241993_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0900</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoBrutoExplotacion_1086282241993_0" xlink:to="reference_ResultadoBrutoExplotacion_1086282241993_1" xlink:title="reference: ResultadoBrutoExplotacion to reference_ResultadoBrutoExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoBrutoExplotacion_1086282491792_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoBrutoExplotacion" id="reference_ResultadoBrutoExplotacion_1086282491792_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1900</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoBrutoExplotacion_1086282241993_0" xlink:to="reference_ResultadoBrutoExplotacion_1086282491792_0" xlink:title="reference: ResultadoBrutoExplotacion to reference_ResultadoBrutoExplotacion"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DotacionAmortizacionesInmovilizado" xlink:label="reference_DotacionAmortizacionesInmovilizado_1086284217267_0" xlink:title="reference_DotacionAmortizacionesInmovilizado"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionAmortizacionesInmovilizado_1086284217267_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionAmortizacionesInmovilizado" id="reference_DotacionAmortizacionesInmovilizado_1086284217267_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1910</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionAmortizacionesInmovilizado_1086284217267_0" xlink:to="reference_DotacionAmortizacionesInmovilizado_1086284217267_1" xlink:title="reference: DotacionAmortizacionesInmovilizado to reference_DotacionAmortizacionesInmovilizado"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionAmortizacionesInmovilizado_1086284334175_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionAmortizacionesInmovilizado" id="reference_DotacionAmortizacionesInmovilizado_1086284334175_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0910</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionAmortizacionesInmovilizado_1086284217267_0" xlink:to="reference_DotacionAmortizacionesInmovilizado_1086284334175_0" xlink:title="reference: DotacionAmortizacionesInmovilizado to reference_DotacionAmortizacionesInmovilizado"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DotacionesFondoReversion" xlink:label="reference_DotacionesFondoReversion_1086284461648_0" xlink:title="reference_DotacionesFondoReversion"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionesFondoReversion_1086284461648_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionesFondoReversion" id="reference_DotacionesFondoReversion_1086284461648_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0915</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionesFondoReversion_1086284461648_0" xlink:to="reference_DotacionesFondoReversion_1086284461648_1" xlink:title="reference: DotacionesFondoReversion to reference_DotacionesFondoReversion"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionesFondoReversion_1086285080067_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionesFondoReversion" id="reference_DotacionesFondoReversion_1086285080067_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1915</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionesFondoReversion_1086284461648_0" xlink:to="reference_DotacionesFondoReversion_1086285080067_0" xlink:title="reference: DotacionesFondoReversion to reference_DotacionesFondoReversion"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_VariacionProvisionesCirculante" xlink:label="reference_VariacionProvisionesCirculante_1086285285823_0" xlink:title="reference_VariacionProvisionesCirculante"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionProvisionesCirculante_1086285285823_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionProvisionesCirculante" id="reference_VariacionProvisionesCirculante_1086285285823_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1920</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionProvisionesCirculante_1086285285823_0" xlink:to="reference_VariacionProvisionesCirculante_1086285285823_1" xlink:title="reference: VariacionProvisionesCirculante to reference_VariacionProvisionesCirculante"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionProvisionesCirculante_1086285415520_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionProvisionesCirculante" id="reference_VariacionProvisionesCirculante_1086285415520_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0920</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionProvisionesCirculante_1086285285823_0" xlink:to="reference_VariacionProvisionesCirculante_1086285415520_0" xlink:title="reference: VariacionProvisionesCirculante to reference_VariacionProvisionesCirculante"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadoNetoExplotacion" xlink:label="reference_ResultadoNetoExplotacion_1086285576752_0" xlink:title="reference_ResultadoNetoExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoNetoExplotacion_1086285576752_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoNetoExplotacion" id="reference_ResultadoNetoExplotacion_1086285576752_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0930</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoNetoExplotacion_1086285576752_0" xlink:to="reference_ResultadoNetoExplotacion_1086285576752_1" xlink:title="reference: ResultadoNetoExplotacion to reference_ResultadoNetoExplotacion"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoNetoExplotacion_1086285683746_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoNetoExplotacion" id="reference_ResultadoNetoExplotacion_1086285683746_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1930</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoNetoExplotacion_1086285576752_0" xlink:to="reference_ResultadoNetoExplotacion_1086285683746_0" xlink:title="reference: ResultadoNetoExplotacion to reference_ResultadoNetoExplotacion"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_InteresesDiferenciasCambioCapitalizados" xlink:label="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_0" xlink:title="reference_InteresesDiferenciasCambioCapitalizados"/>
    <reference xlink:type="resource" xlink:label="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_InteresesDiferenciasCambioCapitalizados" id="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1960</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_0" xlink:to="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_1" xlink:title="reference: InteresesDiferenciasCambioCapitalizados to reference_InteresesDiferenciasCambioCapitalizados"/>
    <reference xlink:type="resource" xlink:label="reference_InteresesDiferenciasCambioCapitalizados_1086285908949_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_InteresesDiferenciasCambioCapitalizados" id="reference_InteresesDiferenciasCambioCapitalizados_1086285908949_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0960</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_InteresesDiferenciasCambioCapitalizados_1086285799392_0" xlink:to="reference_InteresesDiferenciasCambioCapitalizados_1086285908949_0" xlink:title="reference: InteresesDiferenciasCambioCapitalizados to reference_InteresesDiferenciasCambioCapitalizados"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_DotacionAmortizacionProvisionesFinancieras" xlink:label="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_0" xlink:title="reference_DotacionAmortizacionProvisionesFinancieras"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionAmortizacionProvisionesFinancieras" id="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>0970</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_0" xlink:to="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_1" xlink:title="reference: DotacionAmortizacionProvisionesFinancieras to reference_DotacionAmortizacionProvisionesFinancieras"/>
    <reference xlink:type="resource" xlink:label="reference_DotacionAmortizacionProvisionesFinancieras_1086286113884_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_DotacionAmortizacionProvisionesFinancieras" id="reference_DotacionAmortizacionProvisionesFinancieras_1086286113884_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1970</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_DotacionAmortizacionProvisionesFinancieras_1086286015663_0" xlink:to="reference_DotacionAmortizacionProvisionesFinancieras_1086286113884_0" xlink:title="reference: DotacionAmortizacionProvisionesFinancieras to reference_DotacionAmortizacionProvisionesFinancieras"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadoActividadesOrdinarias" xlink:label="reference_ResultadoActividadesOrdinarias_1086286244452_0" xlink:title="reference_ResultadoActividadesOrdinarias"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoActividadesOrdinarias_1086286244452_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoActividadesOrdinarias" id="reference_ResultadoActividadesOrdinarias_1086286244452_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2020</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoActividadesOrdinarias_1086286244452_0" xlink:to="reference_ResultadoActividadesOrdinarias_1086286244452_1" xlink:title="reference: ResultadoActividadesOrdinarias to reference_ResultadoActividadesOrdinarias"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadoActividadesOrdinarias_1086286359798_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadoActividadesOrdinarias" id="reference_ResultadoActividadesOrdinarias_1086286359798_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1020</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadoActividadesOrdinarias_1086286244452_0" xlink:to="reference_ResultadoActividadesOrdinarias_1086286359798_0" xlink:title="reference: ResultadoActividadesOrdinarias to reference_ResultadoActividadesOrdinarias"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl" xlink:label="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_0" xlink:title="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl" id="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1021</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_0" xlink:to="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_1" xlink:title="reference: ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl to reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286600504_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl" id="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286600504_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2021</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286491677_0" xlink:to="reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl_1086286600504_0" xlink:title="reference: ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl to reference_ResultadosProcedentesInmovilizadoInmaterialMaterialCarteraControl"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl" xlink:label="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_0" xlink:title="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl" id="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2023</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_0" xlink:to="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_1" xlink:title="reference: VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl to reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl"/>
    <reference xlink:type="resource" xlink:label="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286799370_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl" id="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286799370_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1023</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286698515_0" xlink:to="reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl_1086286799370_0" xlink:title="reference: VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl to reference_VariacionProvisionesInmovilizadoInmaterialMaterialCarteraControl"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadosOperacionesAccionesObligacionesPropias" xlink:label="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_0" xlink:title="reference_ResultadosOperacionesAccionesObligacionesPropias"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosOperacionesAccionesObligacionesPropias" id="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1025</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_0" xlink:to="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_1" xlink:title="reference: ResultadosOperacionesAccionesObligacionesPropias to reference_ResultadosOperacionesAccionesObligacionesPropias"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosOperacionesAccionesObligacionesPropias_1086287016832_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosOperacionesAccionesObligacionesPropias" id="reference_ResultadosOperacionesAccionesObligacionesPropias_1086287016832_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2025</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosOperacionesAccionesObligacionesPropias_1086286917820_0" xlink:to="reference_ResultadosOperacionesAccionesObligacionesPropias_1086287016832_0" xlink:title="reference: ResultadosOperacionesAccionesObligacionesPropias to reference_ResultadosOperacionesAccionesObligacionesPropias"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_ResultadosEjerciciosAnteriores" xlink:label="reference_ResultadosEjerciciosAnteriores_1086287120151_0" xlink:title="reference_ResultadosEjerciciosAnteriores"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosEjerciciosAnteriores_1086287120151_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosEjerciciosAnteriores" id="reference_ResultadosEjerciciosAnteriores_1086287120151_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2026</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosEjerciciosAnteriores_1086287120151_0" xlink:to="reference_ResultadosEjerciciosAnteriores_1086287120151_1" xlink:title="reference: ResultadosEjerciciosAnteriores to reference_ResultadosEjerciciosAnteriores"/>
    <reference xlink:type="resource" xlink:label="reference_ResultadosEjerciciosAnteriores_1086287220115_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_ResultadosEjerciciosAnteriores" id="reference_ResultadosEjerciciosAnteriores_1086287220115_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1026</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_ResultadosEjerciciosAnteriores_1086287120151_0" xlink:to="reference_ResultadosEjerciciosAnteriores_1086287220115_0" xlink:title="reference: ResultadosEjerciciosAnteriores to reference_ResultadosEjerciciosAnteriores"/>
    <loc xlink:type="locator" xlink:href="ipp-gen-2005-06-30.xsd#ipp-gen_OtrosResultadosExtraordinarios" xlink:label="reference_OtrosResultadosExtraordinarios_1086287310935_0" xlink:title="reference_OtrosResultadosExtraordinarios"/>
    <reference xlink:type="resource" xlink:label="reference_OtrosResultadosExtraordinarios_1086287310935_1" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtrosResultadosExtraordinarios" id="reference_OtrosResultadosExtraordinarios_1086287310935_1">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11645</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>1030</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtrosResultadosExtraordinarios_1086287310935_0" xlink:to="reference_OtrosResultadosExtraordinarios_1086287310935_1" xlink:title="reference: OtrosResultadosExtraordinarios to reference_OtrosResultadosExtraordinarios"/>
    <reference xlink:type="resource" xlink:label="reference_OtrosResultadosExtraordinarios_1086287448784_0" xlink:role="http://www.xbrl.org/2003/role/presentationRef" xlink:title="reference_OtrosResultadosExtraordinarios" id="reference_OtrosResultadosExtraordinarios_1086287448784_0">
      <ref:Name>BOE</ref:Name>
      <ref:Number>82</ref:Number>
      <ref:Chapter>5478</ref:Chapter>
      <ref:Page>11646</ref:Page>
      <ref:IssueDate>Miércoles 6 abril 2005</ref:IssueDate>
      <ref:Section>Anexo I</ref:Section>
      <ref:Subsection>V.</ref:Subsection>
      <ref:Note>2030</ref:Note>
    </reference>
    <referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="reference_OtrosResultadosExtraordinarios_1086287310935_0" xlink:to="reference_OtrosResultadosExtraordinarios_1086287448784_0" xlink:title="reference: OtrosResultadosExtraordinarios to reference_OtrosResultadosExtraordinarios"/>
  </referenceLink>
</linkbase>

