Yu , Keke,  Qi Shen, Qi Lou, Yitian Zhang, and Xin Ni. 2024. “A Deep Reinforcement Learning Approach to Enhancing Liquidity in the U.S. Municipal Bond Market: An Intelligent Agent-Based Trading System”. Journal of Advanced Computing Systems 4 (3): 1-15. https://doi.org/10.69987/JACS.2024.40301.