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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB910826502" att2="LIB910826502">001   LIB910826502</record>
      <field key="010" subkey="">IHS101236104</field>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">034</field>
      <field key="100" subkey="">samuelson, paul a.</field>
      <field key="331" subkey="">linear programming and economic theory</field>
      <field key="525" subkey="">reprinted from: proceedings of the second symposium of standards and u.s. air force, january 27-29, 1955</field>
      <field key="544" subkey="n">4482-A/I;34</field>
      <field key="596" subkey="a">493 - 504</field>
    </SEQUENTIAL>
  </section>