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Keen, E.M.: Aspects of computer-based indexing languages (1991)
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McJunkin, M.C.: Precision and recall in title keyword searching (1995)
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Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994)
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Bodoff, D.; Kambil, A.: Partial coordination : II. A preliminary evaluation and failure analysis (1998)
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