@article{VLDB-2009-LiuLGF,
	author        = "Yu Liu and Jianzhong Li and Hong Gao and Xiaolin Fang",
	ee            = "http://www.vldb.org/pvldb/2/vldb09-757.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 1,
	pages         = "169--180",
	title         = "{Enabling epsilon-Approximate Querying in Sensor Networks}",
	volume        = 2,
	year          = 2009,
}