Advances in Multimodal Interfaces - ICMI 2000 Third International Conference Beijing, China, October 14-16, 2000 Proceedings - Tan, Tieniu; Tan, Tieniu; Shi, Yuanchun; Shi, Yuanchun; Gao, Wen; Gao, Wen (Springer Berlin Heidelberg : Imprint: Springer, 2000)