Antonio Borges, Romes, Marcos N. Rabelo, Alcione B. Purcina, and Marcos L. Henrique. “Dynamic Modeling and Stability Analysis of a Nonlinear System With Primary Resonance”. International Journal for Innovation Education and Research 8, no. 3 (March 1, 2020): 391–414. Accessed May 16, 2024. https://scholarsjournal.net/index.php/ijier/article/view/2245.