@inproceedings{metzler-etal-2012-structured,
    title = "Structured Event Retrieval over Microblog Archives",
    author = "Metzler, Donald  and
      Cai, Congxing  and
      Hovy, Eduard",
    editor = "Fosler-Lussier, Eric  and
      Riloff, Ellen  and
      Bangalore, Srinivas",
    booktitle = "Proceedings of the 2012 Conference of the North {A}merican Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2012",
    address = "Montr{\'e}al, Canada",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/N12-1083/",
    pages = "646--655"
}