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Wellems, C.: Strukturen der Informationsvermittlung : der Modellversuch in Daten und Resultaten (1990)
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- 12. Online-Frühjahrstagung der Online-Benutzergruppe der DGD, Frankfurt a.M., 15.-17.5.1990: Proceedings. Hrsg.: W. Neubauer u. U. Schneider-Briehn
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Wellems, C.: Information Service Controlling : Beispiele und Erfahrungen aus den USA (1992)
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- 14. Online-Tagung der DGD, Frankfurt am Main, 27. bis 30. April 1992: Proceedings. Hrsg.: W. Neubauer u. S. Plagemann
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Schmidt, R.; Wellems, C.: ¬Der Modellversuch Informationsvermittlung - eine Bilanz : T.2: Ergebnisse, Bewertungen, Folgerungen (1992)
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Schmidt, R.; Wellems, C.: ¬Der Modellversuch Informationsvermittlung - eine Bilanz : T.1: Ziele, Konzepte, Methoden (1991)
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