Mamalyha, Kh.V., and M.M. Osypchuk. 2019. “On Single-Layer Potentials for a Class of Pseudo-Differential Equations Related to Linear Transformations of a Symmetric $\alpha$-Stable Stochastic Process”. Carpathian Mathematical Publications 11 (2):350-60. https://doi.org/10.15330/cmp.11.2.350-360.