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      <record key="001" att1="001" value="LIB907356400" att2="LIB907356400">001   LIB907356400</record>
      <field key="010" subkey="">LIB907354506</field>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">019</field>
      <field key="100" subkey="">Luhmann, Niklas</field>
      <field key="331" subkey="">Translator's Introduction</field>
      <field key="525" subkey="">Chapters 1, 2, Ecological Communication, 1989, Cambridge: Polity Press, vii-xviii, pp. 1-10</field>
      <field key="544" subkey="n">13663-A;19</field>
      <field key="596" subkey="a">423 - 444</field>
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