de Rezende, Ketty A., Nivaldo G. Grulha Jr., Dahisy V. de S. Lima, and Murilo A.J. Zigart. “Gutierrez-Sotomayor Flows on Singular Surfaces”. Topological Methods in Nonlinear Analysis 60, no. 1 (August 31, 2022): 221–265. Accessed April 20, 2024. https://apcz.umk.pl/TMNA/article/view/39776.