@article{VLDB-2014-WeiYLJ,
	author        = "Hao Wei and Jeffrey Xu Yu and Can Lu and Ruoming Jin",
	ee            = "http://www.vldb.org/pvldb/vol7/p1191-wei.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 12,
	pages         = "1191--1202",
	title         = "{Reachability Querying: An Independent Permutation Labeling Approach}",
	volume        = 7,
	year          = 2014,
}