“Analyzing the Nonlinear Dynamics of the Three Degree of Freedom Frame Structure Based on the NewMark-β Method and the Effect of Stiffness on the Displacement of the Structure”. Journal of Civil Engineering Researchers 6, no. 3 (September 1, 2024): 9–17. Accessed September 5, 2025. http://www.journals-researchers.com/ojs/index.php/jcer/article/view/134.