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Schulz, H.: Zur Charakterisierung der BBK/A (1988)
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Schulz, U.: Einführung in die Grundlagen der inhaltlichen Erschließung mit BISMAS am Fachbereich BID der FHS Hannover (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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