Chen, Wubing, Wenbin Li, Xiao Liu, Shangdong Yang, and Yang Gao. “Learning Explicit Credit Assignment for Cooperative Multi-Agent Reinforcement Learning via Polarization Policy Gradient”. Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 10 (June 26, 2023): 11542-11550. Accessed April 26, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/26364.