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ISO 5963: Methods for examining documents, determining their subjects and selecting indexing terms (1983)
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BS 6529: Recommendations for examining documents, determining their subjects and selecting indexing terms (1984)
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Hutchins, J.: Summarization: some problems and methods (1987)
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Pejtersen, A.M.: Design of a classification scheme for fiction based on an analysis of actual user-librarian communication, and use of the scheme for control of librarians' search strategies (1980)
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Austin, J.; Pejtersen, A.M.: Fiction retrieval: experimental design and evaluation of a search system based on user's value criteria. Pt.1 (1983)
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