C. Brooks, und N. Montanez. WWW '06: Proceedings of the 15th international conference on World Wide Web, Seite 625--632. New York, NY, USA, ACM Press, (2006)
C. Brooks, und N. Montanez. WWW '06: Proceedings of the 15th international conference on World Wide Web, Seite 625-632. New York, NY, USA, ACM Press, (2006)