RuzhevichN. A. (1997) “On a limit theorem for an additive functional on a nonrecurrent Markovian chain”, Ukrains’kyi Matematychnyi Zhurnal, 49(2), pp. 262–271. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5003 (Accessed: 24November2024).