@inproceedings{sun-tsujii-2009-sequential,
    title = "Sequential Labeling with Latent Variables: An Exact Inference Algorithm and its Efficient Approximation",
    author = "Sun, Xu  and
      Tsujii, Jun{'}ichi",
    editor = "Lascarides, Alex  and
      Gardent, Claire  and
      Nivre, Joakim",
    booktitle = "Proceedings of the 12th Conference of the {E}uropean Chapter of the {ACL} ({EACL} 2009)",
    month = mar,
    year = "2009",
    address = "Athens, Greece",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/E09-1088/",
    pages = "772--780"
}