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Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992)
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Efthimiadis, E.: Online searching aids : a review of front-ends, gateways and other interfaces (1990)
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Efthimiadis, E.N.: ¬A study of end-user behaviour in searching CD-ROM bibliographic databases (1994)
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Efthimiadis, E.N.: Query expansion (1996)
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Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994)
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Wickliff, G.A.: Special section on designing, testing and distributing hypermedia : introduction (1993)
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