@inproceedings{wadden-etal-2019-entity,
    title = "Entity, Relation, and Event Extraction with Contextualized Span Representations",
    author = "Wadden, David  and
      Wennberg, Ulme  and
      Luan, Yi  and
      Hajishirzi, Hannaneh",
    editor = "Inui, Kentaro  and
      Jiang, Jing  and
      Ng, Vincent  and
      Wan, Xiaojun",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP)",
    month = nov,
    year = "2019",
    address = "Hong Kong, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/D19-1585/",
    doi = "10.18653/v1/D19-1585",
    pages = "5784--5789"
}