Chaabane, Djamal, and Nadia Lachemi. “ Optimizing Over the Efficient Set of the Binary Bi-Objective Knapsack Problem”. Yugoslav Journal of Operations Research 33, no. 1 (October 20, 2022): 91–110. Accessed August 25, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/726.