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      <record key="001" att1="001" value="LIB904208308" att2="LIB904208308">001   LIB904208308</record>
      <field key="010" subkey="">LIB904207705</field>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">007</field>
      <field key="100" subkey="">mifflin, robert</field>
      <field key="331" subkey="">a feasible descent algorithm for linearly constrained least squares problems</field>
      <field key="544" subkey="n">8567-B;7</field>
      <field key="596" subkey="a">103 - 126</field>
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