Kazuaki Kojima, Kazuhisa Miwa. Experimental Investigation and Implementation of Support for Problem Generation by Presenting Cases. In Riichiro Mizoguchi, Pierre Dillenbourg, Zhiting Zhu, editors, Learning by Effective Utilization of Technologies: Facilitating Intercultural Understanding, Proceeding of the 14th International Conference on Computers in Education, ICCE 2006, November 30 - December 4, 2006, Beijing, China. Volume 151 of Frontiers in Artificial Intelligence and Applications, pages 123-126, IOS Press, 2006.