Arslan, Guray, and Melih Hacisalihoglu. “Nonlinear Analysis of RC Columns Using the Drucker-Prager Model”. Journal of Civil Engineering and Management 19, no. 1 (January 16, 2013): 69-77. Accessed December 29, 2024. https://jest.vgtu.lt/index.php/JCEM/article/view/3803.