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Bronson, R.J.: NLM's MeSH vocabulary file (1992)
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Medical Subject Headings : tree structures (1993)
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Greenberg, A.M.: Scope notes in Library of Congress Subject Headings (1981)
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MeSH Thesaurus : German version '96 (1996)
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Dezimalklassifikation : Aachener Ausgabe (im Aufbau) (1993)
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