@inproceedings{MooreIJCAI89,
  author	= {Moore, Johanna D. and Swartout, William R.},
  month		= aug,
  year		= {1989},
  title		= {A Reactive Approach to Explanation},
  booktitle	= {Proceedings of the Eleventh International Joint Conference on Artificial Intelligence},
  address	= {Detroit, MI},
  organization	= {IJCAI}
}