KHUSANBAEV, Ya. M. Almost critical branching processes and limit theorems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 1, p. 127–133, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3008. Acesso em: 6 dec. 2025.