The Design Concepts and Operational Results of Fault-tolerant Computer Systems for the Shinkansen Train Control. - Akira Hachiga; Katsuji Akita; Yutaka Hasegawa (FTCS, 1993)

History of COMTRAC: Development of the Innovative Traffic-Control System for Shinkansen. - Katsuji Akita; Yutaka Hasegawa (IEEE Ann. Hist. Comput., 2016)