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Comaromi, C.L.: Summation of classification as an enhancement of intellectual access to information in an online environment (1990)
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Yee, M.M.: System design and cataloging meet the user : user interfaces to online public access catalogs (1991)
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O'Brien, A.: Relevance as an aid to evaluation in OPACs (1990)
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Markey, K.: Forty years of classification online : final chapter or future unlimited? (2006)
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Hufford, J.R.: Use studies and OPACs (1991)
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