@inproceedings{Greiner-Genesereth83,
  author	= {Greiner, R. and Genesereth, M. R.},
  year		= {1983},
  title		= {What's New? A Semantic Definition of Novelty},
  booktitle	= {Proceedings of the Eighth International Joint Conference on Artificial Intelligence},
  address	= {Karlsruhe, West Germany}
}