@InProceedings{coppola-EtAl:2011:IWPT,
  author    = {Coppola, Gregory F.  and  Birch, Alexandra  and  Deoskar, Tejaswini  and  Steedman, Mark},
  title     = {Simple Semi-Supervised Learning for Prepositional Phrase Attachment},
  booktitle = {Proceedings of the 12th International Conference on Parsing Technologies},
  month     = {October},
  year      = {2011},
  address   = {Dublin, Ireland},
  publisher = {Association for Computational Linguistics},
  pages     = {129--139},
  url       = {http://www.aclweb.org/anthology/W11-2916}
}