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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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- Mitteilungsblatt. VdB NW. N.F. 41(1991), S.385-403
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Schulz, U.: ¬Die niederländische Basisklassifikation: eine Alternative für die "Sachgruppen" im Fremddatenangebot der Deutschen Bibliothek (1991)
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- Bibliotheksdienst. 25(1991), S.1197-1219
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Trinkhaus, M.: Möglichkeiten und Aspekte des sachlichen Zugriffs in Online-Katalogen (1990)
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- Bibliothek. Forschung und Praxis. 14(1990), S.193-225