D. Salber, A. Dey, und G. Abowd. CHI '99: Proceedings of the SIGCHI conference on Human factors in computing systems, Seite 434--441. New York, NY, USA, ACM, (1999)
J. Pérez-Medina, S. Dupuy-Chessa, und A. Front. Task Models and Diagrams for User Interface Design, Volume 4849 von Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2007)
T. McFadden, K. Henricksen, und J. Indulska. In: UbiComp 1st International Workshop on Advanced Context Modelling, Reasoning and Management, Seite 90--95. (2004)
K. Cheverst, N. Davies, K. Mitchell, und A. Friday. Proceedings of the 6th annual international conference on Mobile computing and networking, Seite 20--31. New York, NY, USA, ACM, (2000)