Kala, Zdeněk. “Geometrically Non-Linear Finite Element Reliability Analysis of Steel Plane Frames With Initial Imperfections”. Journal of Civil Engineering and Management 18, no. 1 (February 8, 2012): 81-90. Accessed July 6, 2024. https://jau.vgtu.lt/index.php/JCEM/article/view/4415.