CONTI, M.; GAZZOLA, F. Positive entire solutions of quasilinear elliptic problems via nonsmooth critical point theory. Topological Methods in Nonlinear Analysis, [S. l.], v. 8, n. 2, p. 275–294, 1996. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1996.033. Acesso em: 24 apr. 2024.