Kowalewski, Z. L. “Influence of Constant and Monotonic Loadings on Subsequent Biaxial Behaviour of 15 HM Boiler Steel”. Engineering Transactions 44, no. 2 (July 31, 1996): 181–206. Accessed June 11, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/1458.