Y. Kammerer, E. Wollny, P. Gerjets, and K. Scheiter. Proceedings of the 31st Annual Conference of the Cognitive Science Society, Cognitive Science Society, Austin/TX, (2009)
D. Russell, M. Stefik, P. Pirolli, and S. Card. CHI '93: Proceedings of the SIGCHI conference on Human factors in computing systems, page 269--276. New York, NY, USA, ACM Press, (1993)
P. Pirolli, and W. Fu. User Modeling 2003 9th International Conference, UM 2003 Johnstown, PA, USA, June 22–26, 2003 Proceedings, volume 2702 of Lecture Notes in Computer Science, page 45-54. Heidelberg, Springer, (2003)
R. Budiu, P. Pirolli, and L. Hong. CHI '09: Proceedings of the 27th international conference on Human factors in computing systems, ACM, New York, NY, USA, (2009)