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bs: ¬Die schlauen Scheiben : Multimedia-Lexika (2002)
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Prudlo, M.: E-Books für Bibliotheken : Ein Überblick (2006)
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What has happened to Sony Data Discman and Mini-Disc (1996)
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Hentschel, A.: Was Google & Co. wirklich finden (2007)
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Rudolph, M.T.: Kondensiertes Wissen : Elektronische Dokumentenarchivierung (1994)
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