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      <record key="001" att1="001" value="LIB902911405" att2="LIB902911405">001   LIB902911405</record>
      <field key="010" subkey="">LIB902905508</field>
      <field key="037" subkey="x">französisch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">059</field>
      <field key="100" subkey="">tortrat, albert</field>
      <field key="331" subkey="">sur les lois t-regulieres, leurs produits et leur convolution</field>
      <field key="544" subkey="n">6206-A;59</field>
      <field key="596" subkey="a">839 - 849</field>
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