PERESTYUK, N. A.; CHERNIKOVA, O. S. On the Stability of Invariant Sets of Discontinuous Dynamical Systems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 1, p. 78–84, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4223. Acesso em: 5 dec. 2025.