Daisuke Iizuka, Tatsuhiro Konishi, Yukihiro Itoh. Generator of Related Problem Sets for Intelligent Practice Supporting System. In Proceeding of the 19th International Conference on Computers in Education, ICCE 2011, Thailand Science Park, Chiang Mai, Thailand, November 28 - December 1, 2011. Asia-Pacific Society for Computers in Education, 2011. [doi]