M. Morris, und E. Horvitz. Proceedings of the 20th annual ACM symposium on User interface software and technology, Seite 3--12. New York, NY, USA, ACM, (2007)
M. Morris, und E. Horvitz. UIST '07: Proceedings of the 20th annual ACM symposium on User interface software and technology, Seite 3--12. New York, NY, USA, ACM, (2007)