Barannyk, A. F., and I. I. Yuryk. “On Exact Solutions of Nonlinear Diffusion Equations”. Ukrains’kyi Matematychnyi Zhurnal 57, no. 8 (August 25, 2005): 1011 – 1019. Accessed December 5, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3661.