CÎRSTEA, F. Şt.; RĂDULESCU, V. D. Multiple solutions of degenerate perturbed elliptic problems involving a subcritical Sobolev exponent. Topological Methods in Nonlinear Analysis, [S. l.], v. 15, n. 2, p. 283–300, 2000. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2000.021. Acesso em: 27 apr. 2024.