@InProceedings{koo-carreras-collins:2008:ACLMain,
  author    = {Koo, Terry  and  Carreras, Xavier  and  Collins, Michael},
  title     = {Simple Semi-supervised Dependency Parsing},
  booktitle = {Proceedings of ACL-08: HLT},
  month     = {June},
  year      = {2008},
  address   = {Columbus, Ohio},
  publisher = {Association for Computational Linguistics},
  pages     = {595--603},
  url       = {http://www.aclweb.org/anthology/P/P08/P08-1068}
}