ShahK., and AliA. “Ulam-Hyers Stability Analysis to a Three-Point Boundary Value Problem for Fractional Differential Equations”. Ukrains’kyi Matematychnyi Zhurnal 72, no. 2 (February 15, 2020): 147-160. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/371.