HAI, D. D. On an asymptotically linear singular boundary value problems. Topological Methods in Nonlinear Analysis, [S. l.], v. 39, n. 1, p. 83–92, 2012. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2012.005. Acesso em: 22 jul. 2024.