“Existence, Uniqueness, Ulam Stability and Continuous Dependence of Mild Nonnegative Solutions for an Iterative Fractional Relaxation Differential Equation”. Nonlinear Studies 33, no. 1 (February 28, 2026): 21`9–234. Accessed February 28, 2026. https://www.nonlinearstudies.com/index.php/nonlinear/article/view/4152.