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RIAO 91 : Computer aided information retrieval. Conference, Barcelona, 2.-4.5.1991 (1991)
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7e Dag van het Document : 19 & 20 mei 1998, Congrescentrum De Reehorst, Ede ; proceedings (1998)
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Zukunft der Sacherschließung im OPAC : Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995 (1996)
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Experimentelles und praktisches Information Retrieval : Festschrift für Gerhard Lustig (1992)
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SIGIR'92 : Proceedings of the 15th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (1992)
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