<section name="raw">
    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB902388903" att2="LIB902388903">001   LIB902388903</record>
      <field key="037" subkey="x">englisch</field>
      <field key="038" subkey="y">russisch</field>
      <field key="050" subkey="x">Buch</field>
      <field key="076" subkey="">Formalwissenschaft</field>
      <field key="100" subkey="">demyanov, vladimir f.</field>
      <field key="100" subkey="b">kranc, george m. (tr.)</field>
      <field key="104" subkey="a">rubinov, aleksandr m.</field>
      <field key="331" subkey="">approximate methods in optimization problems</field>
      <field key="341" subkey="">priblizhennyye metody resheniya ekstremal'ykh zadach</field>
      <field key="403" subkey="">1., engl. ed.</field>
      <field key="410" subkey="">new york</field>
      <field key="412" subkey="">american elsevier publishing company</field>
      <field key="425" subkey="">1970</field>
      <field key="433" subkey="">ix, 256 pp.</field>
      <field key="451" subkey="">modern analytic and computational methods in science and mathematics; 32</field>
      <field key="451" subkey="h">bellman, richard (ed.)</field>
      <field key="461" subkey="">a group of monographs and advanced textbooks</field>
      <field key="517" subkey="c">from the table of contents: introduction; necessary conditions for an extremum; successive approximation methods; solution of</field>
      <field key="cer" subkey="t">ain optimal-control problems; some problems of finite-dimensional spaces;</field>
      <field key="540" subkey="">0-444-00088-7</field>
      <field key="544" subkey="">5195-A</field>
    </SEQUENTIAL>
  </section>