ALVES, C. O.; ISNERI, R. J. S.; MONTECCHIARI, P. Existence of saddle-type solutions for a class of quasilinear problems in R^2. Topological Methods in Nonlinear Analysis, [S. l.], v. 61, n. 2, p. 825–868, 2023. DOI: 10.12775/TMNA.2022.039. Disponível em: https://apcz.umk.pl/TMNA/article/view/45119. Acesso em: 22 jul. 2024.