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  • × author_ss:"Drtina, J."
  • × type_ss:"a"
  • × year_i:[1960 TO 1970}
  1. Drtina, J.: ¬Die sowjetische Bibliothekarisch-Bibliographische Klassifikation und die Möglichkeiten und Probleme ihrer Anwendung in anderen sozialistischen Ländern (1965) 0.01 
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