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Weeding and maintenance of reference collections (1990) 0.05

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Editor: Pierce, S.J.

Tenopir, C.; Ennis, L.: ¬The digital reference work of academic libraries (1998) 0.01

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Source: Online. 22(1998) no.4, S.22-28

Lipow, A.G.: ¬The virtual reference librarian's handbook (2003) 0.00

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Date: 22. 3.2004 14:46:50

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