Yezhov II, Kadankov VF. On the generating function of the time of first hitting the boundary by a semicontinuous difference of independent renewal processes with discrete time. Ukr. Mat. Zhurn. [Internet]. 2000Apr.25 [cited 2024Nov.24];52(4):553-61. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4446