C. Ahlberg, and B. Shneiderman. CHI '94: Proceedings of the SIGCHI conference on Human factors in computing systems, page 365--371. New York, NY, USA, ACM Press, (1994)
C. Ahlberg, and B. Shneiderman. CHI '94: Proceedings of the SIGCHI conference on Human factors in computing systems, page 313--317. New York, NY, USA, ACM Press, (1994)
A. Rose, B. Shneiderman, and C. Plaisant. ACM Proc. of DIS 95, Symposium on Designing Interactive Systems: Processes, Practices, Methods & Techniques, page 115-122. (August 1995)