Seitenhistorie
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4000 Creating High-Quality Products in Open Content Virtual Communities
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4030 Saarbrücken : VDM Verlag Dr. Müller
4060 Online-Ressource
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5050 004$Ep$D2012-01-17
5050 004$Em$Hdnb$K0,818$D2012-01-17
5050 004$Ea$Honx$D2012-01-16
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