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Watanabe, T.: ¬An experimental OPAC system using NDC8 to improve subject access (1994)
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Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009)
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Jones, R.M.: Online catalogue research in Europe (1989)
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Buckland, M.K.; Lynch, C.A.: National and international implications of the linked systems protocol for online bibliographic systems (1988)
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Cousins, S.A.: In their own words : an examination of catalogue subject queries (1992)
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