Redhwan, Saleh, and Sadikali L. Shaikh. “Implicit Fractional Differential Equation With Nonlocal Integral-Multipoint Boundary Conditions in the Frame of Hilfer Fractional Derivative”. Journal of Mathematical Analysis and Modeling 2, no. 1 (March 29, 2021): 62–71. Accessed October 2, 2025. https://www.sabapub.com/index.php/jmam/article/view/176.