@inproceedings{quercia10recommending,
 author = {Daniele Quercia and Ilias Leontiadis and Liam McNamara and Cecilia Mascolo and Jon Crowcroft},
 title = {{SpotME If You Can: Randomized Responses for Location Obfuscation on Mobile Phones}}, 
 booktitle = {Proceedings of the $31^{th}$ IEEE  International Conference on Distributed Computing Systems (ICDCS)}
 year = {2011},
 month={June},
 pages = {},
 address = {Minneapolis, USA},
 URL       = {http://www.cl.cam.ac.uk/~dq209/publications/spotme.pdf},
 }