Yoshida, N., H. Yamamoto, T. Akiba, K. Shingyochi, and X. Xiao. “A RELATIONSHIP OF COMPONENTS IN THE OPTIMAL ARRANGEMENT PROBLEMS FOR THE MULTI-STATE CONSECUTIVE-K-OUT-OF-n:F SYSTEM IN CASE OF max{kj}=2”. International Journal of Industrial Engineering: Theory, Applications and Practice, vol. 24, no. 4, Dec. 2017, doi:10.23055/ijietap.2017.24.4.2866.