@incollection{Prince81-this,
  author	= {Prince, Ellen F.},
  editor	= {Webber, Bonnie L. and Sag, Aravind K. Joshi nand Ivan A.},
  year		= {1981},
  title		= {On the inferencing of indefinite `this' NPs},
  year		= {1981},
  booktitle	= {Elements of Discourse Processing},
  publisher	= {Cambridge University Press},
  address	= {New York},
  pages		= {231--250}
}