@inproceedings{Klein:2003:ACL,
  author = {Klein, Dan  and  Manning, Christopher D.},
  title  = {Accurate Unlexicalized Parsing},
  booktitle = {Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics},
  editor = {Erhard Hinrichs and Dan Roth},
  url    = {http://www.aclweb.org/anthology/P03-1054.pdf},
  year   = 2003,
  pages  = {423--430}
}