@inproceedings{xu-etal-2019-differentiable,
    title = "Differentiable Sampling with Flexible Reference Word Order for Neural Machine Translation",
    author = "Xu, Weijia  and
      Niu, Xing  and
      Carpuat, Marine",
    editor = "Burstein, Jill  and
      Doran, Christy  and
      Solorio, Thamar",
    booktitle = "Proceedings of the 2019 Conference of the North {A}merican Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers)",
    month = jun,
    year = "2019",
    address = "Minneapolis, Minnesota",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/N19-1207/",
    doi = "10.18653/v1/N19-1207",
    pages = "2047--2053"
}