@incollection{Rothschild:06,
  author	= {Rothschild, Daniel},
  editor	= {Gibson, M. and Howell, J.},
  title		= {Non-Monotonic {NPI}-Licensing, Definite Descriptions, and Grammaticalized Implicatures},
  pages		= {228--240},
  booktitle	= {Proceedings of SALT 16},
  publisher	= {Cornell University},
  address	= {Ithaca, NY},
  year		= {2006}
}