; . Topological Methods in Nonlinear Analysis, [S. l.], v. 58, n. 2, p. 521–547, 2021. DOI: 10.12775/TMNA.2021.011. Disponível em: https://apcz.umk.pl/TMNA/article/view/36417. Acesso em: 22 lip. 2024.