BENCI, V.; MICHELETTI, A. M.; SHTETO, E. On a second order boundary value problem with singular nonlinearity. Topological Methods in Nonlinear Analysis, [S. l.], v. 27, n. 1, p. 1–28, 2006. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2006.001. Acesso em: 22 jul. 2024.