A. Pappu, M. Sun, S. Sridharan, and A. Rudnicky. Human-Computer Interaction: Interaction Modalities and Techniques, 5th International Conference, HCI International 2013, Las Vegas, NV, USA, Proceedings, Part IV, volume 8007 of Lecture Notes in Computer Science, Springer, Heidelberg, (2013)
F. Jourde, Y. Laurillau, A. Moran, and L. Nigay. Interactive Systems: Design, Specification, and Verification, 15th International Workshop, DSV-IS 2008, Kingston, Canada, page 281-286. (2008)
P. Gebhard, and M. Klesen. Intelligent Virtual Agents: 5th International Working Conference, IVA 2005, Kos, Greece, volume 3661 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (2005)