@inproceedings{li-etal-2012-separately,
    title = "A Separately Passive-Aggressive Training Algorithm for Joint {POS} Tagging and Dependency Parsing",
    author = "Li, Zhenghua  and
      Zhang, Min  and
      Che, Wanxiang  and
      Liu, Ting",
    editor = "Kay, Martin  and
      Boitet, Christian",
    booktitle = "Proceedings of {COLING} 2012",
    month = dec,
    year = "2012",
    address = "Mumbai, India",
    publisher = "The COLING 2012 Organizing Committee",
    url = "https://preview.aclanthology.org/ingest_wac_2008/C12-1103/",
    pages = "1681--1698"
}