@article {3667,
	title = {Adaptive Rank-Aware Query Optimization in Relational Databases},
	journal = {ACM Transactions on Database Systems (TODS)},
	volume = {31},
	year = {2006},
	pages = {1257--1304},
	doi = {10.1145/1189769.1189772},
	author = {Ihab Ilyas and Walid G. Aref and Ahmed K. Elmagarmid and Hicham G. Elmongui and Rahul Shah and Jeffrey Scott Vitter}
}
