Secure Opportunistic Computing Privacy Preserving Group Signature Authentication Scheme for M-Healthcare Emergency. International Journal of Information and Electronics Engineering, [S. l.], v. 5, n. 5, p. 335–341, 2015. Disponível em: https://www.ijiee.org/index.php/ijiee/article/view/437. Acesso em: 28 aug. 2026.