C. Danis, und D. Singer. CSCW '08: Proceedings of the ACM 2008 conference on Computer supported cooperative work, Seite 495--504. New York, NY, USA, ACM, (2008)
C. Danis, und D. Singer. CSCW '08: Proceedings of the ACM 2008 conference on Computer supported cooperative work, Seite 495--504. New York, NY, USA, ACM, (2008)