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Niggemann, E.: Änderungen bei den bibliographischen Diensten : Die Deutsche Bibliothek (2002)
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Niggemann, E.; Heiner-Freiling, M.: Deutsche Nationalbibliographie und Dewey Decimal Classification : Überlegungen, Probleme, Perspektiven (2001)
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Gömpel, R.; Junger, U.; Niggemann, E.: Veränderungen im Erschließungskonzept der Deutschen Nationalbibliothek (2011)
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