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Markey, K.: Subject searching in library catalogs : Before and after the introduction of online catalogs (1984)
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Holler, U.: Benutzerfreundlichkeit von Sachkatalogen (1975)
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Fussler, H.H.; Siman, J.L.: Patterns in the use of books in large research libraries (1969)
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Peters, T.A.: ¬The online catalog : A critical examination of public use (1991)
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Poll, R.; Boekhorst, P. de: Measuring quality : international guidelines for performance measurement in academic libraries (1996)
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Matthews, J.R.; Lawrence, G.S.; Ferguson, D.K.: Using online catalogs : a nationwide survey, a report of a study sponsored by the Council on Library Resources (1983)
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