S. Keizer, и H. Bunt. Proceedings of the 7th SIGdial Workshop on Discourse and Dialogue, стр. 37--45. Stroudsburg, PA, USA, Association for Computational Linguistics, (2006)
S. Oviatt. Human Computer Interaction Handbook: Fundamentals, Evolving Technologies, and Emerging Applications, Third Edition, глава Multimodal interfaces, CRC Press, Inc., Boca Raton, FL, USA, (2012)
S. Oviatt. The Human-Computer Interaction Handbook: Fundamentals, Evolving Technologies and Emerging Applications, глава Multimodal interfaces, L. Erlbaum Associates Inc., Hillsdale, NJ, USA, (2003)