Safety Analysis by Box Modeling Method of System Behavior – Application to Train Control System. - Shigeto Hiraguri; Noriyuki Nishibori; Yasuko Hidaka; Takayuki Kasai; Hideo Nakamura (PRDC, 2001)

A Method of Evaluating Railway Signalling System Based on RAMS Concept. - Shigeto Hiraguri; Koji Iwata; Ikuo Watanabe (FORMS/FORMAT, 2010)