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Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008)
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Yang, C.C.; Chung, A.: ¬A personal agent for Chinese financial news on the Web (2002)
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Shapira, B.; Zabar, B.: Personalized search : integrating collaboration and social networks (2011)
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Belkin, N.J.: ¬The use of multiple information problem representation for information retrieval (1994)
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