Katsumi Nitta Yoshihisa Ohtake Shigeru Maeda Masayuki Ono Hiroshi Ohsaki Kiyokazu Sakane HELIC-II: Legal Reasoning System on the Parallel Inference Machine. 423-448 1993 11 New Generation Comput. 3 db/journals/ngc/ngc11.html#NittaOMOOS93 http://dx.doi.org/10.1007/BF03037186