Vivek, D., Kanagarajan, K., & Harikrishnan, S. (2026). Dynamics and Stability Results for Nonlinear Neutral Pantograph Equations via Hilfer-Hadamard Fractional Derivative. Discontinuity, Nonlinearity, and Complexity, 8(1), 37-48. https://doi.org/10.5890/DNC.2019.03.004