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Schramm, R.: Patentinformation (2004)
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STN baut Patentinformation aus (2004)
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Gerick, T.: Content-based Information Retrieval auf Basis semantischer Abfragenetze : Kooperative Technologien am Beispsiel der Dokumentenrecherche in GENIOS Wirtschaftsdatenbanken (1999)
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Panyr, J.: Vektorraum-Modell und Clusteranalyse in Information-Retrieval-Systemen (1987)
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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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