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Jarvelin, K.: ¬A deductive data model for thesaurus navigation and query expansion (1996)
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Qiu, Y.; Frei, H.P.: Concept based query expansion (1993)
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Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-assisted search term selection and query expansion : a review of user-centred studies (2002)
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Bhogal, J.; Macfarlane, A.; Smith, P.: ¬A review of ontology based query expansion (2007)
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Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996)
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