SAMOILENKO, I. V. Moments of Markov Random Evolutions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 7, p. 1002–1008, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4321. Acesso em: 6 dec. 2025.