TROHIMCHUK, Yu. Yu. Jacobian and the Darboux Property. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 10, p. 1439–1440, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2079. Acesso em: 11 apr. 2025.