@inproceedings{SIGMOD-1991-HouOD,
	author        = "Wen-Chi Hou and Gultekin Özsoyoglu and Erdogan Dogdu",
	booktitle     = "{Proceedings of the 21st ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD91/P278.PDF",
	doi           = "10.1145/115790.115837",
	pages         = "278--287",
	title         = "{Error-Constraint COUNT Query Evaluation in Relational Databases}",
	year          = 1991,
}