@inproceedings{Roach-bros2,
  author	= {Sanford, D. L. and Roach, J. W.},
  year		= {1987},
  title		= {Parsing and generating the pragmatics of natural language utterances using metacommunication},
  booktitle	= {Proceedings of the 9th. Annual Conference of the Cognitive Science Society},
  pages		= {89--95}
}