Khorsandi Karimi, S., Sadjadi, J. and Jalali Naini, S.G. 2022. A Bi-Objective Production Planning for a Flexible Supply Chain Solved Using NSGA-II and MOPSO. International Journal of Industrial Engineering and Management. 13, 1 (Mar. 2022), 18–37. DOI:https://doi.org/10.24867/IJIEM-2022-1-298.