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Senzig, D.: Library catalogs for library users (1984)
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Lewis, D.W.: Research on the use of online catalogs and its implications for library practice (1987)
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Markey, K.: Searching and browsing the Dewey Decimal Classification in an online catalog (1987)
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Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992)
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Borgman, C.L.: Why are online catalogs still hard to use? (1996)
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