@incollection{Cummings89-chaining,
  author	= {Cummings, Michael J.},
  editor	= {McCrank, Lawrence J.},
  year		= {1989},
  title		= {Backward and forward chaining in a PROLOG simulation of linguistic models},
  booktitle	= {Data bases in the humanities and social sciences 4: proceedings of the International Conference on Databases in the Humanities and Social Sciences, Auburn University, July, 1987},
  publisher	= {Learned Information, Inc.},
  address	= {Medford, N.J.},
  pages		= {183--194}
}