A.SHEKINAH PREMA SUNAINA. Study on Competent and Revocable Data Access Control Scheme for Multi-Authority Cloud Storage Systems. International Journal of Computer Engineering in Research Trends, [S. l.], v. 2, n. 5, p. 365–368, 2015. Disponível em: https://www.ijcert.org/index.php/ijcert/article/view/150. Acesso em: 2 jun. 2026.