Selvam, A. George Maria, D Vignesh, and R Janagaraj. “Stability of Fractional Order System of Duffing Equation With Quadratic and Cubic Nonlinearities”. International Journal of Computer Sciences and Engineering 7, no. 5 (November 25, 2025): 16–19. Accessed February 2, 2026. https://ijcse.isroset.org/index.php/j/article/view/4818.