Dien, Nguyen, and Dang Trong. “Stability of Solution of a Backward Problem of a Time-Fractional Diffusion Equation With Perturbed Order”. Science and Technology Development Journal 22, no. 1 (March 29, 2019): 158-164. Accessed November 23, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1222.