@article{JMLR:v20:18-079,
  author  = {Max Sommerfeld and J{{\"o}}rn Schrieber and Yoav Zemel and Axel Munk},
  title   = {Optimal Transport: Fast Probabilistic Approximation with Exact Solvers},
  journal = {Journal of Machine Learning Research},
  year    = {2019},
  volume  = {20},
  number  = {105},
  pages   = {1--23},
  url     = {http://jmlr.org/papers/v20/18-079.html}
}