Isakova, T. I., & Filonov, Y. P. (2004). Integral conditions for the invertibility of Markov chains on a half-line with general measure of irreducibility. Ukrains’kyi Matematychnyi Zhurnal, 56(5), 705-712. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/3791