D. Millen, J. Feinberg, and B. Kerr. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, page 111--120. New York, NY, USA, ACM, (2006)
D. Millen, J. Feinberg, and B. Kerr. CHI '06: Proceedings of the SIGCHI conference on Human Factors in computing systems, page 111--120. New York, NY, USA, ACM Press, (2006)