@inproceedings{li-etal-2020-shallow,
    title = "Shallow-to-Deep Training for Neural Machine Translation",
    author = "Li, Bei  and
      Wang, Ziyang  and
      Liu, Hui  and
      Jiang, Yufan  and
      Du, Quan  and
      Xiao, Tong  and
      Wang, Huizhen  and
      Zhu, Jingbo",
    editor = "Webber, Bonnie  and
      Cohn, Trevor  and
      He, Yulan  and
      Liu, Yang",
    booktitle = "Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)",
    month = nov,
    year = "2020",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2020.emnlp-main.72/",
    doi = "10.18653/v1/2020.emnlp-main.72",
    pages = "995--1005"
}