S. Diewald, L. Roalter, A. Möller, и M. Kranz. Proceedings of the 10th International Conference on Mobile and Ubiquitous Multimedia, стр. 73--80. New York, NY, USA, ACM, (December 2011)
B. Vogel, D. Spikol, A. Kurti, и M. Milrad. Proceedings of the 2010 6th IEEE International Conference on Wireless, Mobile, and Ubiquitous Technologies in Education, стр. 65--72. Washington, DC, USA, IEEE Computer Society, (2010)
A. Jameson, и K. Klöckner. Spoken Multimodal Human-Computer Dialogue in Mobile Environments, том 28 из Text, Speech and Language Technology, глава 19, Springer-Verlag, Berlin/Heidelberg, (2005)
L. Gaye, R. a\copyright, и L. Holmquist. NIME '03: Proceedings of the 2003 Conference on New Interfaces for Musical Expression, Singapore, National University of Singapore, (2003)