KartashovM. V. (2000) “Determination of the Spectral Index of Ergodicity of a Birth-and-Death Process”, Ukrains’kyi Matematychnyi Zhurnal, 52(7), pp. 889-897. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4488 (Accessed: 27July2024).