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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB905351307" att2="LIB905351307">001   LIB905351307</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Buch</field>
      <field key="076" subkey="">Ökonomie</field>
      <field key="087" subkey="a">8</field>
      <field key="100" subkey="">goodwin, r.m.</field>
      <field key="103" subkey="">professor of economics, university of siena, italy</field>
      <field key="331" subkey="">essays in linear economic structures</field>
      <field key="403" subkey="">1. ed.</field>
      <field key="410" subkey="">london, basingstoke</field>
      <field key="412" subkey="">macmillan press</field>
      <field key="425" subkey="">1983</field>
      <field key="433" subkey="">viii, 177 pp.</field>
      <field key="540" subkey="">0-333-29102-6</field>
      <field key="544" subkey="">10395-A</field>
      <field key="720" subkey="">economics -- mathematical models</field>
      <field key="720" subkey="">econometrics</field>
      <field key="720" subkey="">algebras, linear</field>
      <field key="720" subkey="">linear models (statistics)</field>
      <field key="720" subkey="">linear programming</field>
      <field key="720" subkey="">system analysis</field>
      <field key="720" subkey="">economics -- linear models</field>
    </SEQUENTIAL>
  </section>