@inproceedings{balahur-etal-2009-opinion,
    title = "Opinion and Generic Question Answering Systems: a Performance Analysis",
    author = "Balahur, Alexandra  and
      Boldrini, Ester  and
      Montoyo, Andr{\'e}s  and
      Mart{\'i}nez-Barco, Patricio",
    editor = "Su, Keh-Yih  and
      Su, Jian  and
      Wiebe, Janyce  and
      Li, Haizhou",
    booktitle = "Proceedings of the {ACL}-{IJCNLP} 2009 Conference Short Papers",
    month = aug,
    year = "2009",
    address = "Suntec, Singapore",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P09-2040/",
    pages = "157--160"
}