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Hancock-Beaulieu, M.: Evaluating the impact of an online library catalogue on subject searching behaviour at the catalogue and at the shelves (1990)
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Drabenstott, K.M.; Weller, M.S.: Handling spelling errors in online catalog searches (1996)
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Morison, H.G.: Online catalogue research and the verbal protocol method (1999)
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Roe, S.: Online subject access (1999)
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Long, C.E.: Improving subject searching in Web-based OPACs : evaluation of the problem and guidelines for design (2000)
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