@article{improvedgradientestimatorsforstochastic,
  title = {Improved Gradient Estimators for Stochastic Discrete Variables},
  author = {Evgeny Andriyash and Arash Vahdat and Bill Macready},
  year = {2018},
  url = {https://openreview.net/forum?id=S1lKSjRcY7},
}