Recommender systems in social networks . Journal of Information Systems and Technology Management, [S. l.], v. 8, n. 3, p. 681–716, 2011. DOI: 10.4301/S1807-17752011000300009. Disponível em: https://www.revistas.usp.br/jistem/article/view/12912.. Acesso em: 29 apr. 2024.