Huu Cuong, Ngo, and Chu Quoc Thang. 2004. “PLASTIC-ZONE AND GEOMETRIC NONLINEARITY ANALYSIS OF PLANAR STEEL FRAMES USING FINITE ELEMENT METHOD”. Science and Technology Development Journal 7 (7), 60-67. https://doi.org/https://doi.org/10.32508/stdj.v7i7.3234.