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  • × author_ss:"Roloff, H."
  • × theme_ss:"Informationsdienstleistungen"
  • × year_i:[1950 TO 1960}
  1. Roloff, H.: ¬Die Auskunftstätigkeit der wissenschaftlichen Bibliotheken (1954) 0.00 
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    Source
    Zentralblatt für Bibliothekswesen. 68(1954) H.3/4, S.85-96