@inproceedings{VLDB-1994-BaralisW,
	author        = "Elena Baralis and Jennifer Widom",
	booktitle     = "{Proceedings of the 20th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1994/P475.PDF",
	isbn          = "1-55860-153-8",
	pages         = "475--486",
	publisher     = "{Morgan Kaufmann}",
	title         = "{An Algebraic Approach to Rule Analysis in Expert Database Systems}",
	year          = 1994,
}