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  <titleInfo>
    <title>Algunas dificultades en torno a la conservacion de la energia</title>
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  <name type="personal">
    <namePart>Solbes, J.</namePart>
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    <namePart>Tarin, F.</namePart>
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  <subject>
    <topic>Conservación de la energía</topic>
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  <subject>
    <topic>Energía</topic>
  </subject>
  <subject authority="">
    <topic>Análisis de datos</topic>
  </subject>
  <subject authority="embne">
    <topic>Mecánica</topic>
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  <relatedItem type="host">
    <titleInfo>
      <title>Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas</title>
    </titleInfo>
    <identifier type="issn">0212-4521</identifier>
    <identifier type="local">1034161</identifier>
    <part>
      <text>Vol. 16, No. 03, Nov. 1998, p 387-397</text>
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