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  1. Schmidt, R.; Wellems, C.: ¬Der Modellversuch Informationsvermittlung - eine Bilanz : T.2: Ergebnisse, Bewertungen, Folgerungen (1992) 10.09
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    Wellems, C.
  2. Schmidt, R.; Wellems, C.: ¬Der Modellversuch Informationsvermittlung - eine Bilanz : T.1: Ziele, Konzepte, Methoden (1991) 10.09
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  3. Wellems, C.: Strukturen der Informationsvermittlung : der Modellversuch in Daten und Resultaten (1990) 10.09
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    Wellems, C.
  4. Wellems, C.: Information Service Controlling : Beispiele und Erfahrungen aus den USA (1992) 10.09
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