DANCER, E. N. Domain variation for certain sets of solutions and applications. Topological Methods in Nonlinear Analysis, [S. l.], v. 7, n. 1, p. 95–113, 1996. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1996.004. Acesso em: 22 lip. 2024.