@inproceedings{rebarlowvarianceunbiasedgradient,
  title = {REBAR: Low-variance, unbiased gradient estimates for discrete latent variable models},
  author = {George Tucker and andriy mnih and Chris J. Maddison and Dieterich Lawson and Jascha Sohl-Dickstein},
  year = {2017},
  booktitle = {NeurIPS 2017 12},
  eprint = {1703.07370},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1703.07370v4},
}