@article{afastproximalpointmethodforcomputing,
  title = {A Fast Proximal Point Method for Computing Exact Wasserstein Distance},
  author = {Yujia Xie and Xiangfeng Wang and Ruijia Wang and Hongyuan Zha},
  year = {2018},
  eprint = {1802.04307},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1802.04307v3},
}