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Lehmann, O.; Lehmann, A.: Top-Platzierungen in Suchmaschinen (2002)
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Lehmann, K.: Zu ausgewählten Problemen der neuen Gliederung der Hauptgruppe R Belletristik : Hinweise und Titel (1984)
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Lehmann, K.: ¬Die Klassifikation für Allgemeinbibliotheken (KAB) (1992)
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Lehmann, K.: Einzelfragen der Überarbeitung der KAB/E (1991)
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Lehmann, K.: Zur Klassifizierung von Darstellungen über einzelne Familien (1991)
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Englert, M.: Techniken der Archivierung und Dokumentation (1995)
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Who is who : Das Jahrbuch der Informationswirtschaft 1996/97 (1996)
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Who is who : Das Jahrbuch der Informationswirtschaft 1998/99 (1999)
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Piella, W.: ¬Die Tür ins Unternehmen (2000)
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Who is who : Das Jahrbuch der Informationswirtschaft 2000/01 (2000)
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