Louakar, Ayoub, Devaraj Vivek, Hamid Lmou, Khalid Hilal, and Ahmed Kajouni. “Existence and Optimal Control of Hilfer Fractional Stochastic Pantograph Differential Equations”. Journal of Vibration Testing and System Dynamics 10, no. 1 (August 17, 2026): 35–51. Accessed August 17, 2026. https://lhscientificpublishing.com/index.php/jvtsd/article/view/31.