@article{VLDB-2013-ArmenatzoglouPP,
	author        = "Nikos Armenatzoglou and Stavros Papadopoulos and Dimitris Papadias",
	ee            = "http://www.vldb.org/pvldb/vol6/p913-papadopoulos.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 10,
	pages         = "913--924",
	title         = "{A General Framework for Geo-Social Query Processing}",
	volume        = 6,
	year          = 2013,
}