M. Araki. WMISI '07: Proceedings of the 2007 Workshop on Multimodal Interfaces in Semantic Interaction, Nagoya, Japan, стр. 58-62. New York, USA, ACM, (2007)
S. Au Yeung, и M. Siu. Proceedings of Interspeech 2004---ICSLP: 8th International Conference on Spoken Language Processing, Jeju Island, Korea, стр. 161-164. (2004)