Borikhanov, M., and B. T. Torebek. “Critical Exponents of Fujita Type for Certain Time-Fractional Diffusion Equations”. International Journal of Mathematics and Physics 9, no. 2 (December 29, 2018): 43–49. Accessed November 21, 2024. https://ijmph.kaznu.kz/index.php/kaznu/article/view/262.