@inproceedings{KR-2000-RychtyckyjR,
	author        = "Nestor Rychtyckyj and Robert G. Reynolds",
	booktitle     = "{Proceedings of the Seventh International Conference on Principles of Knowledge Representation and Reasoning}",
	pages         = "494--504",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Long-Term Maintanability of Deployed Knowledge Representation Systems}",
	year          = 2000,
}