KUZNIETSOVA, Iryna; MAKSYMENKO, Sergiy. Deformational symmetries of smooth functions on non-orientable surfaces. Topological Methods in Nonlinear Analysis, [S. l.], v. 65, n. 1, p. 35–77, 2025. DOI: 10.12775/TMNA.2024.022. Disponível em: https://apcz.umk.pl/TMNA/article/view/58805. Acesso em: 28 jun. 2025.