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Borgman, C.L.: Why are online catalogs hard to use? : lessons learned from information-retrieval studies (1986)
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Borgman, C.L.: End user behavior on the Ohio State University Libraries' online catalog : a computer monitoring study (1983)
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Borgman, C.L.; Hirsh, S.G.; Hiller, J.: Rethinking online monitoring methods for information retrieval systems : from search product to search process (1996)
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