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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB906397406" att2="LIB906397406">001   LIB906397406</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">12</field>
      <field key="100" subkey="b">lawler, e.l. (ed.)</field>
      <field key="104" subkey="b">lenstra, j.k. (ed.)</field>
      <field key="108" subkey="b">rinnooy kan, a.h.g. (ed.)</field>
      <field key="112" subkey="b">et al.</field>
      <field key="331" subkey="">the traveling salesman problem</field>
      <field key="335" subkey="">a guided tour of combinatorial optimization</field>
      <field key="403" subkey="">1. ed., repr., (corr.)</field>
      <field key="410" subkey="">chichester, new york, brisbane</field>
      <field key="412" subkey="">john wiley and sons</field>
      <field key="425" subkey="">1987</field>
      <field key="433" subkey="">x, 465 pp.</field>
      <field key="451" subkey="">wiley-interscience series in discrete mathematics and optimization</field>
      <field key="451" subkey="h">graham, ronald l. (ed.) ; et al.</field>
      <field key="544" subkey="">11951-A</field>
    </SEQUENTIAL>
  </section>