LEI, Y. .; LOPEZ, V.; MOTTA, E. .; UREN, V. AN INFRASTRUCTURE FOR SEMANTIC WEB PORTALS. Journal of Web Engineering, [S. l.], v. 6, n. 4, p. 283–308, 2007. Disponível em: https://journals.riverpublishers.com/index.php/JWE/article/view/4105. Acesso em: 28 apr. 2024.