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  • × author_ss:"Ludwig, J."
  1. Schramm, R.; Ludwig, J.: Regionales Patentnetz in Thüringen : neue Informationsdienstleistungen (1998) 0.01 
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    Source
    Information und Märkte: 50. Deutscher Dokumentartag 1998, Kongreß der Deutschen Gesellschaft für Dokumentation e.V. (DGD), Rheinische Friedrich-Wilhelms-Universität Bonn, 22.-24. September 1998. Hrsg. von Marlies Ockenfeld u. Gerhard J. Mantwill