R. Vilimek, T. Hempel, and B. Otto. Human-Computer Interaction: HCI Intelligent Multimodal Interaction Environments, 12th International Conference, HCI International 2007, Beijing, China, Proceedings, Part III, volume 4552 of Lecture Notes in Computer Science, Springer, Berlin, (2007)
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)
J. Frey, C. Stahl, T. Röfer, B. Krieg-Brückner, and J. Alexandersson. Ambient Intelligence: First International Joint Conference, AmI 2010, Málaga, Spain, volume 6439 of Lecture Notes in Computer Science, Springer, Berlin, (2010)