PEREIRA, A. L.; PEREIRA, M. C. A generic property for the eigenfunctions of the Laplacian. Topological Methods in Nonlinear Analysis, [S. l.], v. 20, n. 2, p. 283–313, 2002. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2002.038. Acesso em: 22 jul. 2024.