BUTSAN , G. P.; KOZACHENKO, M. Yu. Limiting theorem for the parametrical stochastic operator systems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 40, n. 2, p. 153–162, 1988. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9111. Acesso em: 5 dec. 2025.