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  • × author_ss:"Panov, A.A."
  • × type_ss:"m"
  • × year_i:[1970 TO 1980}
  1. Panov, A.A.: Über die wichtigsten Vorbedingungen für die Weiterentwicklung der Bibliothekarisch-Bibliographischen Klassifikation (BBK) (1971) 0.01 
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