THANH, Lê; NGỌC, Nguyễn Văn; HẢI, Nguyễn Thúc. Role hierarchies for temporal constraint role-based access control model. Journal of Computer Science and Cybernetics, [S. l.], v. 21, n. 3, p. 230–243, 2012. DOI: 10.15625/1813-9663/21/3/1247. Disponível em: https://jcc.vast.vn/jcc/article/view/1247. Acesso em: 4 nov. 2025.