Bodnarchuk, S. V., and A. M. Kulik. “Conditions of Smoothness for the Distribution Density of a Solution of a Multidimensional Linear Stochastic Differential Equation With Levy Noise”. Ukrains’kyi Matematychnyi Zhurnal 63, no. 4 (April 25, 2011): 435-447. Accessed May 2, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2729.