Keerthi Thomas Clara Mancini Lukasz Jedrzejczyk Arosha K. Bandara Adam N. Joinson Blaine A. Price Yvonne Rogers Bashar Nuseibeh Studying location privacy in mobile applications: 'predator vs. prey' probes. 2009 SOUPS http://doi.acm.org/10.1145/1572532.1572572 conf/soups/2009 db/conf/soups/soups2009.html#ThomasMJBJPRN09