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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)
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- Date
- 8.10.2004 12:07:22
- Source
- BuB. 56(2004) H.10/11, S.673-677
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Ulrich, P.S.: ¬Die Antwort ist irgendwo da draußen... : Kooperative Auskunft mit der Mailing-Liste 'Stumper-L' - Arbeitsweise und Erfahrungen (1997)
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- Date
- 12. 1.1998 21:14:56
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Ulrich, P.S.: Collaborative Digital Reference Service : Weltweites Projekt (2001)
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- Date
- 20. 4.2002 17:30:22