Shoichi Nakamura Keisuke Suzuki Setsuo Yokoyama Youzou Miyadera A Learning Environment for Understanding of Program Division Patterns. 554-566 2007 conf/kes/2007-3 KES (3) http://dx.doi.org/10.1007/978-3-540-74829-8_69 db/conf/kes/kes2007-3.html#NakamuraSYM07