CHRISTOU, I. T. .; MICHALAKOS, S. . G2G: LOCATION-AWARE MOBILE SOCIAL NETWORKING WITH APPLICATIONS IN PERSONALIZED RECOMMENDER SYSTEMS. Journal of Mobile Multimedia, [S. l.], v. 6, n. 1, p. 073–094, 2009. Disponível em: https://journals.riverpublishers.com/index.php/JMM/article/view/4785. Acesso em: 1 jun. 2026.