Claudio Agostino Ardagna Marco Cremonini Gabriele Gianini Landscape-aware location-privacy protection in location-based services. 243-254 2009 55 Journal of Systems Architecture - Embedded Systems Design 4 http://dx.doi.org/10.1016/j.sysarc.2009.01.003 db/journals/jsa/jsa55.html#ArdagnaCG09