INFANTE, G. Nonzero positive solutions of a multi-parameter elliptic system with functional BCs. Topological Methods in Nonlinear Analysis, [S. l.], v. 52, n. 2, p. 665–675, 2017. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2017.060. Acesso em: 19 apr. 2024.