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Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988)
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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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Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992)
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Shoham, S.; Yitzhaki, M.: Classification systems and the online catalog (1994)
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Murdock, P.R.: Cataloging catalysis toward a new chemistry of conscience, communication and conduct in the online catalog (1989)
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