webpage http://dx.doi.org/10.1145/1357054.1357208 http://www.scopus.com/inward/record.url?eid=2-s2.0-57649179494&partnerID=MN8TOARS
published in Conference on Human Factors in Computing Systems - Proceedings Proceedings Proceedings of the SIGCHI Conference on Human Factors in Computing Systems Journal Proceedings of the SIGCHI Conference on Human Factors in Computing Systems Proceedings