Luo, Albert C. J. “Dynamics and Bifurcations in a Quadratic Nonlinear System With Univariate Product Vector Fields, Part II”. Journal of Vibration Testing and System Dynamics 8, no. 1 (March 1, 2024): 77–154. Accessed October 17, 2026. https://lhscientificpublishing.com/index.php/jvtsd/article/view/81.