ECHARGHAOUI, Rachid; HATIMI, Abdelouhab; HATIMI, Mohamed. A sub-elliptic system with strongly coupled critical terms and concave nonlinearities. CUBO, A Mathematical Journal, [S. l.], v. 27, n. 3, p. 595–618, 2025. DOI: 10.56754/0719-0646.2703.595. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/4178. Acesso em: 20 feb. 2026.