“Analysis of Homoclinic Bifurcation in a Nonlinearly Damped Duffing-Van Der Pol Oscillator under the Excitation of Two-Forcing Terms”. Nonlinear Studies 28, no. 4 (November 23, 2021). Accessed September 13, 2025. https://nonlinearstudies.com/index.php/nonlinear/article/view/2033.