1.
DE REZENDE, Ketty A., GRULHA JR., Nivaldo G., LIMA, Dahisy V. de S. and ZIGART, Murilo A.J. Gutierrez-Sotomayor flows on singular surfaces. Topological Methods in Nonlinear Analysis. Online. 31 August 2022. Vol. 60, no. 1, pp. 221 - 265. [Accessed 22 July 2024]. DOI 10.12775/TMNA.2021.054.