Mohammed , M. (2011) “ Lyapunov-Schmidt Method in Bifurcation Solutions of Nonlinear Fourth Order Differential Equation ”, University of Thi-Qar Journal of Science, 3(1), pp. 135–145. Available at: https://jsci.utq.edu.iq/index.php/main/article/view/218 (Accessed: 29 March 2025).