Liu, Jie, and Voratas Kachitvichyanukul. “A Pareto-Based Particle Swarm Optimization Algorithm for Multi-Objective Location Routing Problem”. International Journal of Industrial Engineering: Theory, Applications and Practice 22, no. 3 (April 13, 2015). Accessed November 25, 2024. https://ijietap.journals.publicknowledgeproject.org/index.php/ijie/article/view/1553.