J. Lugrin, M. Cavazza, D. Pizzi, T. Vogt, and E. André. Proceedings of the 17th ACM Symposium on Virtual Reality Software and Technology, page 103--110. New York, NY, USA, ACM, (2010)
M. Cavazza, J. Lugrin, D. Pizzi, and F. Charles. Proceedings of the 15th international conference on Multimedia, page 651--660. New York, NY, USA, ACM, (2007)