Ryo Otoguro, Kiyoshi Ishikawa, Hiroshi Umemoto, Kei Yoshimoto, Yasunari Harada: Proceedings of the 24th Pacific Asia Conference on Language, Information and Computation, PACLIC 24, Tohoku University, Japan, 4-7 November 2010. Institute for Digital Enhancement of Cognitive Development, Waseda University 2010, ISBN 978-4-905166-00-9