Bibliography (5):

1. https://bair.berkeley.edu/blog/2022/07/10/pg-ar/

2. Benchmarking Multi-Agent Deep Reinforcement Learning Algorithms in Cooperative Tasks

3. The Surprising Effectiveness of PPO in Cooperative, Multi-Agent Games

4. https://sites.google.com/view/revisiting-marl

5. Wikipedia Bibliography:

   1. Reinforcement learning