Garstecki, A., W. Kąkol, and K. Rzeszut. “Analysis of Thin-Walled Bars With Open and Closed-Open Cross-Sections”. Engineering Transactions 48, no. 4 (June 26, 2015): 345–355. Accessed June 11, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/579.