@inproceedings{differentiablesamplingwithflexible,
  title = {Differentiable Sampling with Flexible Reference Word Order for Neural Machine Translation},
  author = {Weijia Xu and Xing Niu and Marine Carpuat},
  year = {2019},
  booktitle = {NAACL 2019 6},
  eprint = {1904.04079},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1904.04079v2},
}