@article{VLDB-2012-CaoCCX,
	author        = "Xin Cao and Lisi Chen and Gao Cong and Xiaokui Xiao",
	ee            = "http://vldb.org/pvldb/vol5/p1136_xincao_vldb2012.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 11,
	pages         = "1136--1147",
	title         = "{Keyword-aware Optimal Route Search}",
	volume        = 5,
	year          = 2012,
}