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Bronson, R.J.: NLM's MeSH vocabulary file (1992)
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Jones, R.: Indexing the British Medical Journal (1994)
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Walton, L.: Knowledge Finder (1991)
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Wisniewski, J.: Authority work, Internet resources, and a cataloguer's home page (1998)
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Studwell, W.E.: Music libraries and a subject heading code (1992)
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