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Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992)
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Ensor, P.: User characteristics of keyword searching in an OPAC (1992)
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Borgman, C.L.; Hirsh, S.G.; Walter, V.A.; Gallagher, A.L.: Childrens searching behavior on browsing and keyword online catalogs : the Science Library Catalog project (1995)
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Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009)
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Eisenberg, M.: Big 6 tips : teaching information problem solving (1998)
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