PAPAGEORGIOU, N. S.; RĂDULESCU, V. D. Multiplicity theorems for resonant and superlinear nonhomogeneous elliptic equations. Topological Methods in Nonlinear Analysis, [S. l.], v. 48, n. 1, p. 283–320, 2016. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2016.048. Acesso em: 22 jul. 2024.