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Mayr, P.; Umstätter, W.: ¬Eine bibliometrische Zeitschriftenanalyse mit Jol Scientrometrics und NfD bzw. IWP (2008)
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Umstätter, W.: ¬Die Rolle der Dokumentation bei der Entstehung der Digitalen Bibliothek und ihre Konsequenzen für die Bibliothekswissenschaft (1995)
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Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982)
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Umstätter, W.: Leistungsgrenzen der Dokumentations-, Informations-, Begriffs- und Wissensorganisation (2001)
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Umstätter, W.: Wissen - Konstrukt oder Rekonstruktion der Popperschen Welt? : oder Warum sich die ISKO in International Society for Knowledge Self-Organization umbenennen sollte (2017)
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Umstätter, W.: Szientometrische Verfahren (2004)
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- Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
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Umstätter, W.: ¬Die Skalierung von Information, Wissen und Literatur (1992)
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Schwarz, I.; Umstätter, W.: ¬Die vernachlässigten Aspekte des Thesaurus : Dokumentarische, pragmatische, semantische und syntaktische Einblicke (1999)
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Schwarz, I.; Umstätter, W.: Zum Prinzip der Objektdarstellung in SGML (1998)
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Umstätter, W.: Wissensorganisation mit Hilfe des semiotischen Thesaurus : auf der Basis von SGML bzw. XML (2000)
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Umstätter, W.: Zukunft der Informationswissenschaft : Vom Information Retrieval zur Wissensorganisation (2017)
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Umstätter, W.: Knowledge Economy und die Privatisierung von Bibliotheken (2006)
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