Gusak, D. V. “Compound Poisson Processes With Two-Sided Reflection”.
Ukrains’kyi Matematychnyi Zhurnal
54, no. 12 (December 25, 2002): 1616–1625. Accessed April 11, 2025.
https://umj.imath.kiev.ua/index.php/umj/article/view/4200
.