@inproceedings{graca-etal-2019-generalizing,
    title = "Generalizing Back-Translation in Neural Machine Translation",
    author = "Gra{\c{c}}a, Miguel  and
      Kim, Yunsu  and
      Schamper, Julian  and
      Khadivi, Shahram  and
      Ney, Hermann",
    editor = "Bojar, Ond{\v{r}}ej  and
      Chatterjee, Rajen  and
      Federmann, Christian  and
      Fishel, Mark  and
      Graham, Yvette  and
      Haddow, Barry  and
      Huck, Matthias  and
      Yepes, Antonio Jimeno  and
      Koehn, Philipp  and
      Martins, Andr{\'e}  and
      Monz, Christof  and
      Negri, Matteo  and
      N{\'e}v{\'e}ol, Aur{\'e}lie  and
      Neves, Mariana  and
      Post, Matt  and
      Turchi, Marco  and
      Verspoor, Karin",
    booktitle = "Proceedings of the Fourth Conference on Machine Translation (Volume 1: Research Papers)",
    month = aug,
    year = "2019",
    address = "Florence, Italy",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W19-5205/",
    doi = "10.18653/v1/W19-5205",
    pages = "45--52"
}