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  • × classification_ss:"BID 40"
  1. ¬Der Online-Publikumskatalog der Universitätsbibliothek Düsseldorf : Methodische Erkenntnisse und Erfahrungen; OPAC-Kolloquium am 27.-28.11.1989 (1991) 10.60 
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    Classification
    AN 12561
    Rvk
    AN 12561