ÁNGEL, A.; COLMAN, H. G-category versus orbifold category. Topological Methods in Nonlinear Analysis, [S. l.], v. 61, n. 1, p. 179–197, 2023. DOI: 10.12775/TMNA.2022.055. Disponível em: https://apcz.umk.pl/TMNA/article/view/42821. Acesso em: 22 jul. 2024.