@inproceedings{SIGMOD-2002-RiedewaldAA,
	author        = "Mirek Riedewald and Divyakant Agrawal and Amr El Abbadi",
	booktitle     = "{Proceedings of the 20th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/564691.564694",
	isbn          = "1-58113-497-5",
	pages         = "13--24",
	publisher     = "{ACM}",
	title         = "{Efficient integration and aggregation of historical information}",
	year          = 2002,
}