Ponomarenko A. M. “Fractional diffusion Equation Degenerating on the Initial Hyperplane”. Ukrains’kyi Matematychnyi Zhurnal 73, no. 3 (March 19, 2021): 370 - 380. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/6320.