IDZIK, A.; KULPA, W.; MAĆKOWIAK, P. Equivalent forms of the Brouwer fixed point theorem. Topological Methods in Nonlinear Analysis, [S. l.], v. 44, n. 1, p. 263–276, 2016. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2014.047. Acesso em: 18 apr. 2024.