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.