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Schramm, R.; Ludwig, J.: Regionales Patentnetz in Thüringen : neue Informationsdienstleistungen (1998)
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- 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
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Schramm, R.: Patentinformation (1997)
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Schramm, R.; Bartkowski, A.: Patentindikatoren zur Ermittlung von Kerninformationen (1996)
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Schramm, R.: Kerninformationen mittels formaler Bewertungskritierien (1996)
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