@inproceedings{SEKE-1993-LiL,
	author        = "Aizhong Li and Xuhua Liu",
	booktitle     = "{Proceedings of the Fifth International Conference on Software Engineering and Knowledge Engineering}",
	pages         = "215--218",
	publisher     = "{Knowledge Systems Institute}",
	title         = "{A Computational Theory of Knowledge Discovery and Revision}",
	year          = 1993,
}