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      <record key="001" att1="001" value="LIB900737001" att2="LIB900737001">001   LIB900737001</record>
      <field key="010" subkey="">IHS100141407</field>
      <field key="037" subkey="x">deutsch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">001</field>
      <field key="100" subkey="">horstmann, kurt</field>
      <field key="331" subkey="">bevoelkerung und arbeitspotential</field>
      <field key="544" subkey="n">581-A;1</field>
      <field key="596" subkey="a">1 - 22</field>
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