@InProceedings{wan:2012:POSTERS,
  author    = {Wan, Xiaojun},
  title     = {Update Summarization Based on Co-Ranking with Constraints},
  booktitle = {Proceedings of COLING 2012: Posters},
  month     = {December},
  year      = {2012},
  address   = {Mumbai, India},
  publisher = {The COLING 2012 Organizing Committee},
  pages     = {1291--1300},
  url       = {http://www.aclweb.org/anthology/C12-2126}
}