@InProceedings{emms:2006:LingDist,
  author    = {Emms, Martin},
  title     = {Variants of Tree Similarity in a Question Answering Task},
  booktitle = {Proceedings of the Workshop on Linguistic Distances},
  month     = {July},
  year      = {2006},
  address   = {Sydney, Australia},
  publisher = {Association for Computational Linguistics},
  pages     = {100--108},
  url       = {http://www.aclweb.org/anthology/W/W06/W06-1113}
}