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Oberhauser, O.: Teil 2: Ergebnisse der Befragung : Web-Umfrage zur Benutzung von Card-Image Online-Katalogen (2002)
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Jansen, H.: Discovery-Services : Einführung, Marktübersicht und Trends (2014)
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Christensen, A.; Finck, M.: Discovery-Systeme : eine Analyse ihrer Geschichte und Gegenwart mit dem Hype-Zyklus (2021)
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