@article{VLDB-2008-LiFWZ,
	author        = "Guoliang Li and Jianhua Feng and Jianyong Wang and Lizhu Zhou",
	ee            = "http://www.vldb.org/pvldb/1/1454198.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 2,
	pages         = "1452--1455",
	title         = "{An effective and versatile keyword search engine on heterogenous data sources}",
	volume        = 1,
	year          = 2008,
}