@inproceedings{ML-1991-MaW,
	author        = "Yong Ma and David C. Wilkins",
	booktitle     = "{Proceedings of the Eighth International Workshop on Machine Learning}",
	isbn          = "1-55860-200-3",
	pages         = "23--27",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Improving the Performance of Inconsistent Knowledge Bases via Combined Optimization Method}",
	year          = 1991,
}