@inproceedings{CIKM-2010-FreniVMBJ,
	author        = "Dario Freni and Carmen Ruiz Vicente and Sergio Mascetti and Claudio Bettini and Christian S. Jensen",
	booktitle     = "{Proceedings of the 19th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1871437.1871480",
	isbn          = "978-1-4503-0099-5",
	pages         = "309--318",
	publisher     = "{ACM}",
	title         = "{Preserving location and absence privacy in geo-social networks}",
	year          = 2010,
}