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Dreis, G.: Formen des sachlichen Zugriffs : Probleme des automatischen Indexierens (1991)
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- Der Online-Publikumskatalog der Universitätsbibliothek Düsseldorf: methodische Erkenntnisse und Erfahrungen, OPAC-Kolloquium am 27. u.28.11.1989. Hrsg.: G. Gattermann
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Knorz, G.: Automatische Indexierung (1994)
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