@inproceedings{varianceregularizedcounterfactualrisk,
  title = {Variance Regularized Counterfactual Risk Minimization via Variational Divergence Minimization},
  author = {Hang Wu},
  year = {2018},
  booktitle = {ICLR 2018 1},
  url = {https://openreview.net/forum?id=SyPMT6gAb},
}