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Schramm, R.: Patentinformation (2004)
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Geiß, D.: Aus der Praxis der Patentinformation : Teil 1: Übersicht über die Entwicklung der elektronischen Medien bei Patentbehörden (2004)
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STN baut Patentinformation aus (2004)
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Hahn, U.: Expertensysteme als intelligente Informationssysteme : Konzepte für die funktionale Erweiterung des Information Retrieval (1985)
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Lamprecht, H.: Datenbanknutzung im Vergleich (1998)
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