2 citations to https://www.mathnet.ru/rus/spa4

1. Valeriy Ivanovich Afanasyev, “Limit theorems for a strongly supercritical branching process with immigration in random environment”, Stoch. Qual. Control, 36:2 (2021), 129–143      
2. Yanqing Wang, Quansheng Liu, “Asymptotic Properties of a Supercritical Branching Process with Immigration in a Random Environment”, Stochastics and Quality Control, 36:2 (2021), 145