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  • × author_ss:"Helbig, G."
  1. Helbig, G.: ¬Das Projekt "Klassifikation für wissenschaftliche Bibliotheken" (1990) 0.00 
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  2. Fröschner, G.; Helbig, G.; Schulz, H.: Richtlinie für die Adaption der sowjetischen Bibliothekarisch-bibliographischen Klassifikation (1981) 0.00 
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  3. Helbig, G.: Zuordnungen und Abgrenzungen der Sachgebiete bei den naturwissenschaftlich-technischen Hauptgruppen im Rahmen der zentralen Adaption der BBK (1984) 0.00 
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