KULIK, V. L.; KULIK, L. Regular linear extensions of dynamical systems on a torus . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 8, p. 1170–1173, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5916. Acesso em: 5 dec. 2025.