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Efthimiadis, E.N.; Neilson, C.: ¬A classified bibliography on online public access catalogues (1989)
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Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994)
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Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
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