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Umstätter, W.: ¬Die Folgen der Online-Revolution : Begabungsförderung durch lnformationskompetenz (2009)
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Nourmohammadi, H.A.; Umstätter, W.: ¬Die Verteilung der Autorenhäufigkeit in wissenschaftlichen Zeitschriften bei verschiedenen Themen und Ländern (2004)
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Mayr, P.; Umstätter, W.: ¬Eine bibliometrische Zeitschriftenanalyse mit Jol Scientrometrics und NfD bzw. IWP (2008)
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- Information - Wissenschaft und Praxis. 59(2008) H.6/7, S.353-360
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Umstätter, W.: Bibliographie, Kataloge, Suchmaschinen : Das Ende der Dokumentation als modernes Bibliothekswesen (2005)
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Umstätter, W.: DDC in Europa : Hat der Einsatz in der Deutschen Nationalbibliothek unsere Zunft weitergebracht? Hat unsere Klientel etwas davon? (2008)
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- Bibliotheksdienst. 42(2008) H.11, S.1194-1221
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Umstätter, W.: Leistungsgrenzen der Dokumentations-, Informations-, Begriffs- und Wissensorganisation (2001)
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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.: Wissensorganisation mit Hilfe des semiotischen Thesaurus : auf der Basis von SGML bzw. XML (2000)
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Umstätter, W.: Knowledge Economy und die Privatisierung von Bibliotheken (2006)
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