Sadahiro Isoda Shuichiro Yamamoto Hiroaki Kuroki Atsuko Oka Evaluation and introduction of the structured methodology and a CASE tool. 49-58 1995 28 Journal of Systems and Software 1 http://dx.doi.org/10.1016/0164-1212(94)00080-7 db/journals/jss/jss28.html#IsodaYKO95