Coşkun, Safa Bozkurt. “Analysis of tilt‐buckling of Euler Columns With Varying Flexural Stiffness Using Homotopy Perturbation Method”. Mathematical Modelling and Analysis 15, no. 3 (July 15, 2010): 275-286. Accessed July 3, 2024. https://jau.vgtu.lt/index.php/MMA/article/view/6020.