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Dominich, S.: ¬A unified mathematical definition of classical information retrieval (2000)
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Bruza, P.D.; Huibers, T.W.C.: ¬A study of aboutness in information retrieval (1996)
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Lavrenko, V.: ¬A generative theory of relevance (2009)
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Hersh, W.: Relevance and retrieval evaluation : perspectives from medicine (1994)
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Furner, J.: Information science Is neither (2015)
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