GONÇALVES, D. L.; DOS SANTOS, A. P.; SILVA, W. L. The Borsuk-Ulam property for maps from the product of two surfaces into a surface. Topological Methods in Nonlinear Analysis, [S. l.], v. 58, n. 2, p. 367–388, 2021. DOI: 10.12775/TMNA.2021.020. Disponível em: https://apcz.umk.pl/TMNA/article/view/36353. Acesso em: 3 jul. 2024.