@InProceedings{bodenstab-hollingshead-roark:2011:ACL-HLT2011,
  author    = {Bodenstab, Nathan  and  Hollingshead, Kristy  and  Roark, Brian},
  title     = {Unary Constraints for Efficient Context-Free Parsing},
  booktitle = {Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {676--681},
  url       = {http://www.aclweb.org/anthology/P11-2119}
}