-
Tenopir, C.; Ennis, L.: ¬The digital reference work of academic libraries (1998)
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- Source
- Online. 22(1998) no.4, S.22-28
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Tenopir, C.; Neufang, R.: ¬The impact of electronic reference on reference librarians (1992)
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Tenopir, C.: Choices for electronic reference (1993)
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Tenopir, C.; Green, D.: Patterns of use and usage factors for online databases in academic and public libraries (1999)
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