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  • × author_ss:"Keller, A."
  • × theme_ss:"Informationsdienstleistungen"
  • × year_i:[1990 TO 2000}
  1. Keller, A.; Neubauer, W.: Dienstleistungsangebote von Bibliotheken in elektronischer Form : Eine Benutzungsstudie der ETH-Bibliothek (1999) 0.00
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