J. Walczak and J. Zacharzewski, “Numerical Interpretations of Creep Buckling Behavior 
of Columns”, Eng. Trans., vol. 30, no. 1, pp. 3–19, Mar. 1982, Accessed: Jan. 17, 2026. [Online]. Available: http://et.ippt.gov.pl/index.php/et/article/view/1964