@incollection{MooreSwartout90-catalina,
  author	= {Moore, Johanna D. and Swartout, William R.},
  editor	= {Paris, C{\'e}cile L. and Swartout, William R. and Mann, William C.},
  year		= {1991},
  title		= {A Reactive Approach to Explanation},
  booktitle	= {Natural language generation in artificial intelligence and computational linguistics},
  pages		= {3--48},
  publisher	= {Kluwer Academic Publishers}
}