1.
J. Al-Sawoor A, آن, A. Samarchi M, میرنا. An Application of He’s Variational Iteration Method for Solving Duffing - Van Der Pol Equation. RJCSM [Internet]. 2025 Jun. 25 [cited 2025 Aug. 6];10(2):153-6. Available from: https://ojs.uomosul.edu.iq/index.php/csmj/article/view/19431