@inproceedings{peters-etal-2017-semi,
    title = "Semi-supervised sequence tagging with bidirectional language models",
    author = "Peters, Matthew E.  and
      Ammar, Waleed  and
      Bhagavatula, Chandra  and
      Power, Russell",
    editor = "Barzilay, Regina  and
      Kan, Min-Yen",
    booktitle = "Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)",
    month = jul,
    year = "2017",
    address = "Vancouver, Canada",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P17-1161/",
    doi = "10.18653/v1/P17-1161",
    pages = "1756--1765"
}