@inproceedings{li-etal-2008-pnr2,
    title = "{PNR}2: Ranking Sentences with Positive and Negative Reinforcement for Query-Oriented Update Summarization",
    author = "Li, Wenjie  and
      Wei, Furu  and
      Lu, Qin  and
      He, Yanxiang",
    editor = "Scott, Donia  and
      Uszkoreit, Hans",
    booktitle = "Proceedings of the 22nd International Conference on Computational Linguistics (Coling 2008)",
    month = aug,
    year = "2008",
    address = "Manchester, UK",
    publisher = "Coling 2008 Organizing Committee",
    url = "https://preview.aclanthology.org/fix-sig-urls/C08-1062/",
    pages = "489--496"
}