Surynek, Pavel, Ariel Felner, Roni Stern, and Eli Boyarski. “An Empirical Comparison of the Hardness of Multi-Agent Path Finding under the Makespan and the Sum of Costs Objectives”. Proceedings of the International Symposium on Combinatorial Search 7, no. 1 (September 1, 2021): 145–146. Accessed May 27, 2026. https://ojs.aaai.org/index.php/SOCS/article/view/18407.