UNIQUE AND PROGRESSIVE PROOF OF REPOSITORY FOR MULTI-USER IN CLOUD ENVIRONMENTS. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 12, p. 47–51, 2017. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/5136. Acesso em: 9 sep. 2025.