Optimal periodic testing policy for circuit with self-testing. - Satoshi Mizutani; Toshio Nakagawa; Kodo Ito; Hiroaki Sandoh (Comput. Math. Appl., 2006)

Optimal Maintenance Policies for a System With Multiechelon Risks. - Toshio Nakagawa; Kodo Ito (IEEE Trans. Syst. Man Cybern. Part A, 2008)

Optimal inspection models with minimal repair. - Kodo Ito; Satoshi Mizutani; Toshio Nakagawa (Reliab. Eng. Syst. Saf., 2020)