@InProceedings{shen:TAG+7:2004,
  author    = {Shen, Libin},
  title     = {Nondeterministic LTAG Derivation Tree Extraction},
  booktitle = {Proceedings of the 7th International Workshop on Tree Adjoining Grammar and Related Formalisms},
  month     = {May},
  year      = {2004},
  address   = {Vancouver, Canada},
  pages     = {199--203},
  url       = {http://www.aclweb.org/anthology/W04-3327}
}