@inproceedings{metelli2018policy,
  author = {Metelli, Alberto Maria and Papini, Matteo and Faccio, Francesco and Restelli, Marcello},
  title = {Policy Optimization via Importance Sampling},
  booktitle = {Advances in Neural Information Processing Systems ({NeurIPS})},
  volume = {31},
  pages = {5447--5459},
  year = {2018},
  url = {http://papers.nips.cc/paper/7789-policy-optimization-via-importance-sampling}
}