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  • × author_ss:"Ludwig, D."
  • × type_ss:"x"
  • × year_i:[1980 TO 1990}
  1. Ludwig, D.: ¬Die Diskussion um die BBK in der sowjetischen Fachliteratur seit 1965 : mit einem Exkurs über die Anwendung der BBK in Bibliotheken der DDR (1984) 0.01 
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