ALA, S.; AFROUZI, G. A. Existence of Positive Solutions for a Class of Variable Exponent Elliptic Systems. MATHEMATICA SCANDINAVICA, [S. l.], v. 118, n. 1, p. 83–94, 2016. DOI: 10.7146/math.scand.a-23298. Disponível em: https://tidsskrift.dk/math/article/view/23298. Acesso em: 14 aug. 2026.