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Humphrey, S.M.: ¬The MedIndEx prototype for computer assisted MEDLINE database indexing (1993)
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Humphrey, S.M.: Use and management of classification systems for knowledge-based indexing (1992)
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Humphrey, S.M.: Knowledge-based systems for indexing (1994)
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Humphrey, S.M.: Indexing biomedical documents : from thesaural to knowledge-based retrieval systems (1992)
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Lancaster, F.W.; Ulvila, J.W.; Humphrey, S.M.; Smith, L.C.; Allen, B.; Herner, S.: Evaluation of interactive knowledge-based systems : overview and design for empirical testing (1996)
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Humphrey, S.M.: Automatic indexing of documents from journal descriptors : a preliminary investigation (1999)
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