APA (7th ed.) Citation

Zhao, X., & Nakagawa, T. (2012). Optimization problems of replacement first or last in reliability theory. European journal of operational research, 223(1), 141-149. https://doi.org/10.1016/j.ejor.2012.05.035

Chicago Style (17th ed.) Citation

Zhao, Xufeng, and Toshio Nakagawa. "Optimization Problems of Replacement First or Last in Reliability Theory." European Journal of Operational Research 223, no. 1 (2012): 141-149. https://doi.org/10.1016/j.ejor.2012.05.035.

MLA (9th ed.) Citation

Zhao, Xufeng, and Toshio Nakagawa. "Optimization Problems of Replacement First or Last in Reliability Theory." European Journal of Operational Research, vol. 223, no. 1, 2012, pp. 141-149, https://doi.org/10.1016/j.ejor.2012.05.035.