Dominic W. Massaro Kazuya Takeda Deb Roy Alexandros Potamianos Proceedings of the 9th International Conference on Multimodal Interfaces, ICMI 2007, Nagoya, Aichi, Japan, November 12-15, 2007 ICMI ACM 2007 978-1-59593-817-6 db/conf/icmi/icmi2007.html