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Congreve, J.: Problems of subject access : automatic generation of printed indexes and online thesaural control (1986)
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Schauder, C.: Library of Congress Subject Heading reference structures and OPACs (1991)
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Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009)
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Cousins, S.A.; Hartley, R.J.: Towards multilingual online public access catalogues (1994)
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Wormell, I.: Subject access redefinied : how new technology changes the conception of subject representation (1994)
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