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Sridhar, M.S.: ¬A mathematical approach to relations in thesauri (1980)
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Peters, I.; Stock, W.G.: Power tags in information retrieval (2010)
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Miles, A.; Pérez-Agüera, J.R.: SKOS: Simple Knowledge Organisation for the Web (2006)
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Paice, C.D.: ¬A thesaural model of information retrieval (1991)
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Jing, Y.; Croft, W.B.: ¬An association thesaurus for information retrieval (199?)
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