J. Cadiz, A. Gupta, und J. Grudin. CSCW '00: Proceedings of the 2000 ACM conference on Computer supported cooperative work, Seite 309-318. New York, NY, USA, ACM Press, (2000)
J. Cadiz, A. Gupta, und J. Grudin. CSCW '00: Proceedings of the 2000 ACM conference on Computer supported cooperative work, Seite 309--318. New York, NY, USA, ACM Press, (2000)