@article{VLDB-2016-El-RobyAAL,
	author        = "Ahmed El-Roby and Khaled Ammar and Ashraf Aboulnaga and Jimmy Lin",
	doi           = "10.14778/3007263.3007289",
	ee            = "http://www.vldb.org/pvldb/vol9/p1481-el-roby.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 13,
	pages         = "1481--1484",
	title         = "{Sapphire: Querying RDF Data Made Simple}",
	volume        = 9,
	year          = 2016,
}