KudratovKh., and KhusanbaevYa. “Some Limit Theorems for the Critical Galton–Watson Branching Processes”. Ukrains’kyi Matematychnyi Zhurnal 75, no. 4 (May 10, 2023): 467 - 477. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/6781.