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Ganter, B.: Algorithmen zur formalen Begriffsanalyse (1991)
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Vogt, F.; Wachter, C.; Wille, R.: Data analysis based on a conceptual file (1991)
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Wille, R.; Wachter, C.: Begriffsanalyse von Dokumenten (1992)
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- Information und Dokumentation in den 90er Jahren: neue Herausforderung, neue Technologien. Deutscher Dokumentartag 1991, Universität Ulm, 30.9.-2.10.1991. Hrsg.: W. Neubauer u. K.-H. Meier
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Kollewe, W.: Data representation by nested line diagrams illustrated by a survey of pensioners (1991)
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- International classification. 18(1991) no.1, S.26-34
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Luksch, P.; Wille, R.: ¬A mathematical model for conceptual knowledge systems (1991)
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Prediger, S.: Kontextuelle Urteilslogik mit Begriffsgraphen : Ein Beitrag zur Restrukturierung der mathematischen Logik (1998)
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Vogt, F.; Wille, R.: TOSCANA - a graphical tool for analyzing and exploring data (1995)
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- Knowledge organization. 22(1995) no.2, S.78-81
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Priss, U.: Faceted information representation (2000)
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Priss, U.: Faceted knowledge representation (1999)
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