FIGUEROA, R.; LÓPEZ POUSO, R.; RODRÍGUEZ-LÓPEZ, J. A version of Krasnosel’skiĭ’s compression-expansion fixed point theorem in cones for discontinuous operators with applications. Topological Methods in Nonlinear Analysis, [S. l.], v. 51, n. 2, p. 493–510, 2018. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2018.003. Acesso em: 27 apr. 2024.