S. Oviatt, R. Coulston, и R. Lunsford. Proceedings of the 6th international conference on Multimodal interfaces, стр. 129--136. New York, NY, USA, ACM, (2004)
J. Frey, C. Schulz, R. Neßelrath, V. Stein, и J. Alexandersson. Proceedings of the 3rd International Conference on Health Informatics. HEALTHINF-2010, in Conjunction with Proceedings of the 3rd International Conference on Health Informatics, January 20-23, Valencia, Spain, Springer, (января 2010)