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- author's%3a%22Ratzek%2c W.%22 2
- authors%3a%22Ratzek%2c W.%22 2
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Prestipino, M.: ¬Die virtuelle Gemeinschaft als Informationssystem : Informationsqualität nutzergenerierter Inhalte in der Domäne Tourismus (2010)
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- Boizenburg : VWH, Verl. W. Hülsbusch
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Information und Wissen : global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011 (2010)
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- Boizenburg : VWH, Verl. W. Hülsbusch