Bratiichuk, N. S., D. V. Gusak, and A. V. Svishchuk. “On the Creative Contribution of V. S. Korolyuk to the Development of Probability Theory”. Ukrains’kyi Matematychnyi Zhurnal 52, no. 8 (August 25, 2000): 1014–1030. Accessed December 6, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/4505.