@InProceedings{mcdonald-satta:2007:IWPT2007,
  author    = {McDonald, Ryan  and  Satta, Giorgio},
  title     = {On the Complexity of Non-Projective Data-Driven Dependency Parsing},
  booktitle = {Proceedings of the Tenth International Conference on Parsing Technologies},
  month     = {June},
  year      = {2007},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {121--132},
  url       = {http://www.aclweb.org/anthology/W/W07/W07-2216}
}