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  1. Hirko, B.; Ross, M.B.: Virtual reference training : the complete guide to providing anytime anywhere answers (2004) 0.00
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    Date
    22.10.2005 19:29:16
  2. 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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