@incollection{SteedmanJohnsonLaird80,
  author	= {Steedman, Mark J. and JohnsonLaird, P. N.},
  editor	= {Butterworth, B.},
  year		= {1980},
  title		= {The production of sentences, utterances and speech acts: have computers anything to say?},
  booktitle	= {Language Production. Volume 1 : Speech and Talk},
  publisher	= {Academic Press},
  address	= {New York},
  pages		= {111--142}
}