STANZHITSKII, A. N. Investigation of Invariant Sets of Itô Stochastic Systems with the Use of Lyapunov Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 2, p. 282–285, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4248. Acesso em: 5 dec. 2025.