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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB904257903" att2="LIB904257903">001   LIB904257903</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Buch</field>
      <field key="076" subkey="">Formalwissenschaft</field>
      <field key="087" subkey="a">15</field>
      <field key="100" subkey="b">christofides, nicos (ed.)</field>
      <field key="104" subkey="b">mingozzi, aristide (ed.)</field>
      <field key="108" subkey="b">toth, paolo (ed.)</field>
      <field key="112" subkey="b">et al.</field>
      <field key="116" subkey="b">puppi, g. (pr.)</field>
      <field key="331" subkey="">combinatorial optimization</field>
      <field key="403" subkey="">1. ed.</field>
      <field key="410" subkey="">chichester, new york, brisbane</field>
      <field key="412" subkey="">john wiley and sons</field>
      <field key="425" subkey="">1979</field>
      <field key="433" subkey="">x, 425 pp.</field>
      <field key="451" subkey="">a wiley-interscience publication</field>
      <field key="507" subkey="">summer school in combinatorial optimization ; sogesta (sp.) ; urbino, italy ; 1977, 30th may - 11th june</field>
      <field key="540" subkey="">0-471-99749-8</field>
      <field key="544" subkey="">8721-A</field>
      <field key="700" subkey="b">511</field>
      <field key="700" subkey="b">general principles of mathematics</field>
      <field key="710" subkey="">mathematical optimization</field>
      <field key="710" subkey="">combinatorial analysis</field>
    </SEQUENTIAL>
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