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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB902256403" att2="LIB902256403">001   LIB902256403</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">23</field>
      <field key="100" subkey="b">erdoes, p(al) (ed.)</field>
      <field key="104" subkey="b">renyi, a(lfred) (ed.)</field>
      <field key="108" subkey="b">sos, vera t. (ed.)</field>
      <field key="331" subkey="">combinatorial theory and its applications; i</field>
      <field key="335" subkey="">proceedings</field>
      <field key="335" subkey="a">renyi, catherine ; renyi, alfred ; to the memory of</field>
      <field key="403" subkey="">1. ed.</field>
      <field key="410" subkey="">amsterdam, london</field>
      <field key="412" subkey="">north-holland publishing company</field>
      <field key="425" subkey="">1970</field>
      <field key="433" subkey="">390 pp.</field>
      <field key="451" subkey="">colloquia mathematica societatis janos bolyai; 4</field>
      <field key="507" subkey="">colloquium on combinatorial theory and its applications ; bolyai mathematical society (sp.) ; balatonfuered (hungary) ; 1969,</field>
      <field key="aug" subkey="u">st 24-29</field>
      <field key="544" subkey="">4989-A/I</field>
    </SEQUENTIAL>
  </section>