@inproceedings{SIGMOD-1992-AikenWH,
	author        = "Alexander Aiken and Jennifer Widom and Joseph M. Hellerstein",
	booktitle     = "{Proceedings of the 22nd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD92/P059.PDF",
	doi           = "10.1145/130283.130296",
	pages         = "59--68",
	title         = "{Behavior of Database Production Rules: Termination, Confluence, and Observable Determinism}",
	year          = 1992,
}