S. Oviatt, R. Coulston, and R. Lunsford. Proceedings of the 6th international conference on Multimodal interfaces, page 129--136. New York, NY, USA, ACM, (2004)
S. Oviatt, R. Coulston, and R. Lunsford. Proceedings of the 6th international conference on Multimodal interfaces, page 129--136. New York, NY, USA, ACM, (2004)