ZHANG, Dongfebg; XU, Xindong. On the linearization of vector fields on a torus with prescribed frequency. Topological Methods in Nonlinear Analysis, [S. l.], v. 54, n. 2, p. 649–663, 2019. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2019.058. Acesso em: 4 jul. 2025.