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Library resources on the Internet : strategies for selection and use (1992)
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Härkönen, S.: Digital Reference Konsortien : Kooperative Online-Auskunft in Bibliotheken (2007)
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- 22. 8.2009 19:50:27
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Lipow, A.G.: ¬The virtual reference librarian's handbook (2003)
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- 22. 3.2004 14:46:50
