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Robertson, S.E.: OKAPI at TREC (1994)
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Larson, R.R.: Classification clustering, probabilistic information retrieval, and the online catalog (1991)
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Maron, M.E.: Associative search techniques versus probabilistic retrieval models (1982)
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Collins, C.: WordNet explorer : applying visualization principles to lexical semantics (2006)
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Geyser, E.P.: ¬A model for the evaluation of an information retrieval system in terms of user friedliness (1993)
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