@inproceedings{burstein81,
  author	= {Burstein, Mark H.},
  year		= {1981},
  title		= {Concept Formation through the Formation of Multiple Models},
  booktitle	= {Proceedings of the Third Annual Conference of the Cognitive Science Society},
  pages		= {271--273},
  address	= {Berkeley, California},
  organization	= {Cognitive Science Society}
}