@InProceedings{klein-manning:2001:ACL,
  author    = {Dan Klein  and  Christopher D. Manning},
  title     = {Parsing with Treebank Grammars: Empirical Bounds, Theoretical Models, and the Structure of the Penn Treebank},
  booktitle = {Proceedings of 39th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2001},
  address   = {Toulouse, France},
  publisher = {Association for Computational Linguistics},
  pages     = {338--345},
  url       = {http://www.aclweb.org/anthology/P01-1044},
  doi       = {10.3115/1073012.1073056}
}