@inproceedings{Ladusaw:92,
  author	= {Ladusaw, William A.},
  editor	= {Barker, Chris and Dowty, David},
  title		= {Expressing Negation},
  booktitle	= {Proceedings of SALT II},
  address	= {Ohio State University},
  year		= {1992},
  pages		= {237--259}
}