LECHEHEB, Samira; FEKRACHE, Abdelhak. Topological degree methods for a nonlinear elliptic system with variable exponents. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 69, n. 4, p. 881–893, 2024. DOI: 10.24193/subbmath.2024.4.12. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/8607. Acesso em: 5 feb. 2025.