DANG, Hai Long; TRAN, Hong Mo. A unified approach to zero duality gap for convex optimization problems. Natural Sciences Issue, [S. l.], v. 11, n. 5, p. 9–18, 2022. Disponível em: https://dthujs.vn/index.php/nsen/article/view/56. Acesso em: 10 sep. 2026.