Durdiev, D. K., and Zh. Zh. Zhumayev. “Problem of Determining a Multidimensional Thermal Memory in a Heat Conductivity Equation”. Methods of Functional Analysis and Topology 25, no. 3 (September 25, 2019): 219–226. Accessed December 15, 2025. https://zen.imath.kiev.ua/index.php/mfat/article/view/727.