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  • × author_ss:"Ulrich, P.S."
  • × theme_ss:"Informationsdienstleistungen"
  1. Ulrich, P.S.: Collaborative Digital Reference Service : Weltweites Projekt (2001) 0.01 
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    Date
    20. 4.2002 17:30:22
  2. Sauer, C.-D.; Ulrich, P.S.: Zuverlässige Brücke zu den Informationen im Netz : Von der Allgemeinen Auskunft der Amerika-Gedenkbibliothek zum Referat Informationsdienste der Zentral und Landesbibliothek Berlin (2004) 0.01 
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    Date
    8.10.2004 12:07:22