@article{modelfreeopponentshaping,
  title = {Model-Free Opponent Shaping},
  author = {Chris Lu and Timon Willi and Christian Schroeder de Witt and Jakob Foerster},
  year = {2022},
  eprint = {2205.01447},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2205.01447v2},
}