@inproceedings{yang-etal-2004-np,
    title = "An {NP}-Cluster Based Approach to Coreference Resolution",
    author = "Yang, Xiaofeng  and
      Su, Jian  and
      Zhou, GuoDong  and
      Tan, Chew Lim",
    booktitle = "{COLING} 2004: Proceedings of the 20th International Conference on Computational Linguistics",
    month = "aug 23–aug 27",
    year = "2004",
    address = "Geneva, Switzerland",
    publisher = "COLING",
    url = "https://preview.aclanthology.org/fix-sig-urls/C04-1033/",
    pages = "226--232"
}