@article{smoothandsparseoptimaltransport,
  title = {Smooth and Sparse Optimal Transport},
  author = {Mathieu Blondel and Vivien Seguy and Antoine Rolet},
  year = {2017},
  eprint = {1710.06276},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1710.06276v2},
}