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Niggemann, E.: RSWK oder was sonst? Sacherschließung für den Online-Publikumskatalog der Universitätsbibliothek Düsseldorf - ein Werkstattbericht (1991)
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Schulz, U.: ¬Die niederländische Basisklassifikation: eine Alternative für die "Sachgruppen" im Fremddatenangebot der Deutschen Bibliothek (1991)
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Trinkhaus, M.: Möglichkeiten und Aspekte des sachlichen Zugriffs in Online-Katalogen (1990)
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Tudhope, D.; Binding, C.; Blocks, D.; Cuncliffe, D.: Representation and retrieval in faceted systems (2003)
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