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)
D. Voelz, E. André, G. Herzog, and T. Rist. RoboCup-98: Robot Soccer World Cup II, volume 1604 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (1999)
E. André, G. Herzog, and T. Rist. RoboCup-97: Robot Soccer World Cup I, volume 1395 of Lecture Notes in Artificial Intelligence, Springer, Berlin, (1998)