Sender, E., and W. Trąmpczyński. “The 18G2A Steel (Construction Steel) Cyclic Behaviour in the Case of Complex Uniaxial Loading”. Engineering Transactions 43, no. 1-2 (July 1, 1995): 327–355. Accessed June 12, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/1502.