@inproceedings{Ritchie86,
  author	= {Ritchie, Graeme},
  month		= aug,
  year		= {1986},
  title		= {The Computational Complexity of Sentence Derivation in Functional Unification Grammar},
  booktitle	= {Proceedings of COLING 86},
  address	= {Bonn, West Germany},
  organization	= {Association for Computational Linguistics}
}