G2G: location-aware mobile social networking with applications in recommender systems and gaming. - Sotiris Michalakos; Ioannis T. Christou (MoMM, 2008)

G2G: Location-aware Mobile Social Networking with Applications in Personalized Recommender Systems. - Ioannis T. Christou; Sotiris Michalakos (J. Mobile Multimedia, 2010)