SLYUSARCHUK, V. Yu. Necessary and sufficient conditions for the invertibility of nonlinear differentiable maps. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 4, p. 563–576, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1861. Acesso em: 5 dec. 2025.