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Slack, F.: Subject searching in OPACs : a general survey of facilities available on OPACs in academic libraries in the UK (1988)
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Slack, F.: Subject searching on OPACs : problems and help provision (1991)
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Slack, F.: End user searches and search path maps : a discussion (1996)
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Slack, F.: End-user searches and search path maps : a discussion (1996)
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Rowley, J.; Slack, F.: Designing public access systems (1998)
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Elliot, J.D.: ¬The use of OPACs (Online Public Access Catalogues) in map libraries (1991)
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Connell, T.H.: Subject cataloging (1996)
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OPACs: an overview (1993)
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Congreve, J.: Subject access (1991)
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Kreslins, K.; O'Brien, A.; Smith, I.A.: Online public access catalogues in Latvia : strategies for subject access (1994)
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