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Mendelsohn, J.: Human help at OPAC terminals is user friendly : a preliminary study (1994)
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Whitley, K.M.: Tandem use of Dewey Classmate and Knowledge Index for on-line searching by end users (1991)
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Connaway, L.S.; Johnson, D.W.; Searing, S.E.: Online catalogs from the users' perspective : the use of focus group interviews (1997)
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DiMartino, D.; Zoe, L.R.: End-user full-text searching : access or excess? (1996)
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Blecic, D.D.: Using transaction log analysis to improve OPAC retrieval results (1998)
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