@inproceedings{SIGMOD-2008-CaoDCT,
	author        = "Yu Cao and Gopal C. Das and Chee Yong Chan and Kian-Lee Tan",
	booktitle     = "{Proceedings of the 26th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1376616.1376671",
	isbn          = "978-1-60558-102-6",
	pages         = "525--538",
	publisher     = "{ACM}",
	title         = "{Optimizing complex queries with multiple relation instances}",
	year          = 2008,
}