@inproceedings{sampleefficientpolicygradientmethodswith,
  title = {Sample Efficient Policy Gradient Methods with Recursive Variance Reduction},
  author = {Pan Xu and Felicia Gao and Quanquan Gu},
  year = {2019},
  booktitle = {ICLR 2020 1},
  eprint = {1909.08610},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.08610v3},
}