DUSSEL, Ignacio Ceresa; BONDER, Julián Fernández. Existence of eigenvalues for anisotropic and fractional anisotropic problems via Ljusternik-Schnirelmann Theory. Topological Methods in Nonlinear Analysis, [S. l.], v. 64, n. 2, p. 577–596, 2024. DOI: 10.12775/TMNA.2024.001. Disponível em: https://apcz.umk.pl/TMNA/article/view/55391. Acesso em: 15 feb. 2026.