BRAUN, F.; DIAS, L. R. G.; SANTOS, J. V. On global invertibility of semi-algebraic local diffeomorphisms. Topological Methods in Nonlinear Analysis, [S. l.], v. 58, n. 2, p. 713–730, 2021. DOI: 10.12775/TMNA.2021.004. Disponível em: https://apcz.umk.pl/TMNA/article/view/36352. Acesso em: 22 jul. 2024.