H. Son, B. Kim, T. Kim, D. Lee, and S. Hyun. Distributed, Ambient, and Pervasive Interactions: Proc.\ of the First International Conference (DAPI 2013), Las Vegas, NV, USA, 8028, Springer, Heidelberg, (2013)
M. Romanelli, D. Sonntag, and N. Reithinger. Poster and Demo Proceedings of the 1st International Conference on Semantic and Digital Media Technologies (SAMT-2006), Athens, Greece, volume 233 of CEUR Workshop Proceedings, Sun SITE Central Europe, (2007)
B. Liu, H. Chen, and W. He. ICTAI '05: Proceedings of the 17th IEEE International Conference on Tools with Artificial Intelligence, Hong Kong, China, page 254-259. (2005)