@inproceedings{towardsunderstandingdeeppolicygradientsa,
  title = {Towards Understanding Deep Policy Gradients: A Case Study on PPO},
  author = {Buhua Liu and CHONG YIN},
  year = {2020},
  booktitle = {CUHK Course IERG5350 2020 12},
  url = {https://openreview.net/forum?id=sdZwV4J-JMD},
}