Kowalewski, Z. L. “Influence of Constant and Monotonic Loadings on Subsequent Biaxial Behaviour of 15 HM Boiler Steel”. Engineering Transactions 44, no. 2 (June 30, 1996): 181–206. Accessed March 19, 2026. https://et.ippt.gov.pl/index.php/et/article/view/1458.