@InProceedings{recasens-demarneffe-potts:2013:NAACL-HLT,
  author    = {Recasens, Marta  and  de Marneffe, Marie-Catherine  and  Potts, Christopher},
  title     = {The Life and Death of Discourse Entities: Identifying Singleton Mentions},
  booktitle = {Proceedings of the 2013 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies},
  month     = {June},
  year      = {2013},
  address   = {Atlanta, Georgia},
  publisher = {Association for Computational Linguistics},
  pages     = {627--633},
  url       = {http://www.aclweb.org/anthology/N13-1071}
}