Hussain, Mudhir A. Abdul. “Two Modes Bifurcation Solutions of Elastic Beams Equation With Nonlinear Approximation”. Communications in Mathematics and Applications 1, no. 2 (September 30, 2010): 123–131. Accessed August 18, 2025. https://www.journals.rgnpublications.com/index.php/cma/article/view/119.