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Vickery, B.C.: Systematic subject indexing (1985)
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Broadbent, E.: ¬The online catalog : dictionary, classified, or both? (1989)
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Hood, W.; Wilson, C.S.: Indexing terms in the LISA database on CD-ROM (1994)
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Bertrand, A.; Cellier, J.-M.: Psychological approach to indexing : effects of the operator's expertise upon indexing behaviour (1995)
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