@incollection{Clark-Marshall81,
  author	= {Clark, H. H. and Marshall, C. R.},
  editor	= {Webber, Bonnie L. and Joshi, Aravind K. and Sag, Ivan A.},
  year		= {1981},
  title		= {Definite Reference and Mutual Knowledge},
  booktitle	= {Elements of Discourse Processing},
  publisher	= {Cambridge University Press},
  pages		= {10--63},
  address	= {New York}
}