SUN, M.-Z. Existence results for the $p$-Laplacian equation with resonance at the first two eigenvalues. Topological Methods in Nonlinear Analysis, [S. l.], v. 39, n. 1, p. 93–105, 2012. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2012.006. Acesso em: 3 jul. 2024.