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Pienaar, R.E.: Enhancement of subject access in online public access catalogues (OPACs) (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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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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