DE REZENDE, Ketty A.; GRULHA JR., Nivaldo G.; LIMA, Dahisy V. de S.; ZIGART, Murilo A.J. Gutierrez-Sotomayor flows on singular surfaces. Topological Methods in Nonlinear Analysis, [S. l.], v. 60, n. 1, p. 221–265, 2022. DOI: 10.12775/TMNA.2021.054. Disponível em: https://apcz.umk.pl/TMNA/article/view/39776. Acesso em: 9 mar. 2025.