HIRANO, N. Multiplicity of solutions for nonhomogeneuous nonlinear elliptic equations with critical exponents. Topological Methods in Nonlinear Analysis, [S. l.], v. 18, n. 2, p. 269–281, 2001. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2001.034. Acesso em: 19 apr. 2024.