J. Mori, Y. Matsuo, H. Koshiba, K. Aihara, and H. Takeda. User Modeling, Adaptation, and Personalization: 17th International Conference, UMAP 2009, formerly UM and AH, Trento, Italy, volume 5535 of Lecture Notes in Computer Science, Springer, Berlin, (2009)
J. Martinez Lastra, and I. Delamer. Advances in Web Semantics I: Ontologies, Web Services and Applied Semantic Web, volume 4891 of Lecture Notes in Computer Science, Springer, Berlin, (2009)
M. Mühlhäuser. Constructing Ambient Intelligence: AmI 2007 Workshops, volume 11 of Communications in Computer and Information Science, Springer, Berlin, (2008)