Alimov, D. “Ergodicity of One Markovian Process of the Poisson Type ”. Ukrains’kyi Matematychnyi Zhurnal 42, no. 6 (June 19, 1990): 832–835. Accessed December 6, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/8847.