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Text retrieval: the next steps (1996)
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Hyams, P.: Who's winning out in text retrieval? (1996)
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Kampffmeyer, U.; Merkel, B.: Textretrieval im Intranet (1997)
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Ewers, A.: ¬A review of new developments in text retrieval systems (1994)
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Tammaro, A.M.: ¬La ricerca ed il recupero dell'informazione (1996)
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