APA (7th ed.) Citation

Wen, U., & Hsu, S. (1991). Linear Bi-level Programming Problems - A Review. The Journal of the Operational Research Society, 42(2), 125-133. https://doi.org/10.1057/jors.1991.23

Chicago Style (17th ed.) Citation

Wen, Ue-Pyng, and Shuh-Tzy Hsu. "Linear Bi-level Programming Problems - A Review." The Journal of the Operational Research Society 42, no. 2 (1991): 125-133. https://doi.org/10.1057/jors.1991.23.

MLA (9th ed.) Citation

Wen, Ue-Pyng, and Shuh-Tzy Hsu. "Linear Bi-level Programming Problems - A Review." The Journal of the Operational Research Society, vol. 42, no. 2, 1991, pp. 125-133, https://doi.org/10.1057/jors.1991.23.