H. Bunt, M. Kipp, M. Maybury, и W. Wahlster. Multimodal Intelligent Information Presentation, том 27 из Text, Speech and Language Technology, Springer, Dordrecht, (2005)
R. op den Akker, H. Bunt, S. Keizer, и B. van Schooten. Proceedings of Interspeech 2005---Eurospeech: 9th European Conference on Speech Communication and Technology. Lisbon, Portugal, стр. 2793--2796. (2005)
S. Rosset, O. Galibert, G. Illouz, и A. Max. Proceedings of Interspeech 2006---ICSLP: 9th International Conference on Spoken Language Processing, Pittsburgh, PA, USA, стр. 1914-1917. (2006)