@inproceedings{nishikawa-etal-2012-text,
    title = "Text Summarization Model based on Redundancy-Constrained Knapsack Problem",
    author = "Nishikawa, Hitoshi  and
      Hirao, Tsutomu  and
      Makino, Toshiro  and
      Matsuo, Yoshihiro",
    editor = "Kay, Martin  and
      Boitet, Christian",
    booktitle = "Proceedings of {COLING} 2012: Posters",
    month = dec,
    year = "2012",
    address = "Mumbai, India",
    publisher = "The COLING 2012 Organizing Committee",
    url = "https://preview.aclanthology.org/fix-sig-urls/C12-2087/",
    pages = "893--902"
}