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Williamson, N.J.: ¬The Library of Congress Classification and the computer: research in progress (1989)
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Williamson, N.J.: ¬The role of classification in online systems (1989)
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Williamson, N.J.: Education for positions in the subject control of information (1987)
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Williamson, N.J.: Subject access in the on-line environment (1984)
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Williamson, N.J.: Online Klassifikation : Gegenwart und Zukunft (1988)
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Hattery, M.: Videotex in the US in 1991 (1991)
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Case, D.O.: ¬The social shaping of videotex : how information services for the public have evolved (1994)
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Black, G.: Videotex at the crossroads (1993)
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Louis, P.: Catalogue et reservations sur Minitel : le videotex tiendra-t-il toutes ses promesses? (1994)
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Hull, P.: Videotex: a new tool for librarians (1994)
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