D. Russell, M. Stefik, P. Pirolli, и S. Card. Proceedings of the INTERACT '93 and CHI '93 conference on Human factors in computing systems, стр. 269--276. New York, NY, USA, ACM, (1993)
Z. Wen, M. Zhou, и V. Aggarwal. IUI '07: Proceedings of the 12th international conference on Intelligent user interfaces, стр. 122--131. New York, NY, USA, ACM Press, (2007)
D. Russell, M. Stefik, P. Pirolli, и S. Card. CHI '93: Proceedings of the SIGCHI conference on Human factors in computing systems, стр. 269--276. New York, NY, USA, ACM Press, (1993)