@InProceedings{boullier-sagot:2007:IWPT2007,
  author    = {Boullier, Pierre  and  Sagot, Benoit},
  title     = {Are Very Large Context-Free Grammars Tractable?},
  booktitle = {Proceedings of the Tenth International Conference on Parsing Technologies},
  month     = {June},
  year      = {2007},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {94--105},
  url       = {http://www.aclweb.org/anthology/W/W07/W07-2213}
}