Agarwal, R. P. ., Hristova, S. ., & O’Regan, D. . (2025). Ulam Stability for Nonlinear Fractional Differential Equations with Multi-Term and Nonlocal Multi-Point Boundary Value Problem. Contemporary Mathematics, 6(4), 4504–4520. https://doi.org/10.37256/cm.6420257261