@inproceedings{lee-etal-2009-multi,
    title = "A Multi-Phase Approach to Biomedical Event Extraction",
    author = "Lee, Hyoung-Gyu  and
      Cho, Han-Cheol  and
      Kim, Min-Jeong  and
      Lee, Joo-Young  and
      Hong, Gumwon  and
      Rim, Hae-Chang",
    editor = "Tsujii, Jun{'}ichi",
    booktitle = "Proceedings of the {B}io{NLP} 2009 Workshop Companion Volume for Shared Task",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W09-1415/",
    pages = "107--110"
}