@InProceedings{spitkovsky-alshawi-jurafsky:2011:CoNLL,
  author    = {Spitkovsky, Valentin I.  and  Alshawi, Hiyan  and  Jurafsky, Daniel},
  title     = {Punctuation: Making a Point in Unsupervised Dependency Parsing},
  booktitle = {Proceedings of the Fifteenth Conference on Computational Natural Language Learning},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {19--28},
  url       = {http://www.aclweb.org/anthology/W11-0303}
}