Harikrishnan, S., K. Kanagarajan, and D. Vivek. 2026. “Analysisof NonlinearNeutral PantographDifferentialEquationswith ψ -Fractional Derivative”. Journal of Vibration Testing and System Dynamics 2 (1): 33-41. https://doi.org/10.5890/JVTSD.2018.03.004.