@inproceedings{chen-etal-2020-enhance,
    title = "Enhance Robustness of Sequence Labelling with Masked Adversarial Training",
    author = "Chen, Luoxin  and
      Liu, Xinyue  and
      Ruan, Weitong  and
      Lu, Jianhua",
    editor = "Cohn, Trevor  and
      He, Yulan  and
      Liu, Yang",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2020",
    month = nov,
    year = "2020",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2020.findings-emnlp.28/",
    doi = "10.18653/v1/2020.findings-emnlp.28",
    pages = "297--302"
}