BENEVIERI, P.; CALAMAI, A.; FURI, M.; PERA, M. P. The Brouwer degree associated to classical eigenvalue problems and applications to nonlinear spectral theory. Topological Methods in Nonlinear Analysis, [S. l.], v. 59, n. 2A, p. 499–523, 2021. DOI: 10.12775/TMNA.2021.006. Disponível em: https://apcz.umk.pl/TMNA/article/view/36492. Acesso em: 22 jul. 2024.