C. Costa, J. Silva, und M. Aparício. Proceedings of the 25th annual ACM international conference on Design of communication, Seite 263–268. New York, NY, USA, ACM, (2007)
A. Geven, R. Sefelin, und M. Tscheligi. Proceedings of the 8th conference on Human-computer interaction with mobile devices and services, Seite 157--164. Helsinki, Finland, ACM, (2006)
S. Trewin. Proceedings of the 2006 international cross-disciplinary workshop on Web accessibility (W4A): Building the mobile web: rediscovering accessibility?, Seite 109--112. Edinburgh, U.K., ACM, (2006)
P. Hagen, T. Robertson, M. Kan, und K. Sadler. Proceedings of the 17th Australia conference on Computer-Human Interaction: Citizens Online: Considerations for Today and the Future, Seite 1--10. Canberra, Australia, Computer-Human Interaction Special Interest Group (CHISIG) of Australia, (2005)
Y. Lim, A. Pangam, S. Periyasami, und S. Aneja. Proceedings of the 4th Nordic conference on Human-computer interaction: changing roles, Seite 291--300. Oslo, Norway, ACM, (2006)