HA, C.-W.; KUO, C.-C. Nonselfadjoint resonance problems with nonlinearities of superlinear growth. Topological Methods in Nonlinear Analysis, [S. l.], v. 5, n. 2, p. 357–364, 1995. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1995.025. Acesso em: 22 jul. 2024.