@inproceedings{Hearsay3,
  author	= {Balzer, R. and Erman, L. D. and London, P. and Williams, C.},
  month		= Aug,
  year		= {1980},
  title		= {Hearsay-III: A domain-independent framework for expert systems},
  booktitle	= {National conference on Artificial Intelligence, 1980 (NCAI80)},
  note		= {(To appear.)},
  address	= {Palo Alto, Calif.}
}