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Wettler, M.; Rapp, R.; Ferber, R.: Freie Assoziationen und Kontiguitäten von Wörtern in Texten (1993)
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Ferber, R.: Vorhersage der Suchwortwahl von professionellen Rechercheuren in Literaturdatenbanken durch assoziative Netze (1992)
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Ferber, R.: Dokumentsuche und Dokumenterschließung (1999)
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Ferber, R.: Information Retrieval : Data Mining-Verfahren für Textsammlungen und das Web (2003)
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