@article{harnessingdistributionratioestimatorsfor,
  title = {Harnessing Distribution Ratio Estimators for Learning Agents with Quality and Diversity},
  author = {Tanmay Gangwani and Jian Peng and Yuan Zhou},
  year = {2020},
  eprint = {2011.02614},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.02614v1},
}