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Ingwersen, P.; Wormell, I.: Modern indexing and retrieval techniques matching different types of information needs (1989)
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Lam, V.-T.: Enhancing subject access to monographs in Online Public Access Catalogs : table of contents added to bibliographic records (2000)
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Piascik, J.M.: Enhanced subject access in Ohio public libraries (1993)
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Barnes, S.; McCue, J.: Linking library records to bibliographic databases : an analysis of common data elements in BIOSIS, Agricola, and the OPAC (1991)
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