@article{VLDB-2012-XuTW,
	author        = "Zichen Xu and Yi-Cheng Tu and Xiaorui Wang",
	ee            = "http://vldb.org/pvldb/vol5/p1954_zichenxu_vldb2012.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 12,
	pages         = "1954--1957",
	title         = "{PET: Reducing Database Energy Cost via Query Optimization}",
	volume        = 5,
	year          = 2012,
}