Hiromitsu Hattori Takahiro Kawamura Tsuyoshi Idé Makoto Yokoo Yohei Murakami New Frontiers in Artificial Intelligence, JSAI 2008 Conference and Workshops, Asahikawa, Japan, June 11-13, 2008, Revised Selected Papers 5447 2009 http://dx.doi.org/10.1007/978-3-642-00609-8 978-3-642-00608-1 JSAI Lecture Notes in Computer Science Springer db/conf/jsai/jsai2008.html