T. Do, and D. Gatica-Perez. Proceedings of the 9th International Conference on Mobile and Ubiquitous Multimedia (MUM '10), Limassol, Cyprus, page 27:1-27:10. ACM, (2010)
M. Pantic, A. Pentland, A. Nijholt, and T. Huang. Artifical Intelligence for Human Computing, volume 4451 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2007)
M. Phillips, J. Nguyen, and A. Mischke. Advances in Speech Recognition: Mobile Environments, Call Centers and Clinics, chapter 3, Springer, New York, (2010)
D. Kosmopoulos, P. Doliotis, V. Athitsos, and I. Maglogiannis. Distributed, Ambient, and Pervasive Interactions: Proc.\ of the First International Conference (DAPI 2013), Las Vegas, NV, USA, 8028, Springer, Heidelberg, (2013)
K. Wongpatikaseree, J. Kim, Y. Makino, A. Lim, and Y. Tan. Distributed, Ambient, and Pervasive Interactions: Proc.\ of the First International Conference (DAPI 2013), Las Vegas, NV, USA, 8028, Springer, Heidelberg, (2013)