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Broadbent, E.: ¬The online catalog : dictionary, classified, or both? (1989)
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Chan, L.M.: Library of Congress class numbers in online catalog searching (1989)
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Walker, S.: Views on classification as a search tool on a computer (1991)
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Svenonius, E.; Liu, S.; Subrahmanyam, B.: Automation of chain indexing (1992)
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Markey, K.: Searching and browsing the Dewey Decimal Classification in an online catalog (1987)
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