Giżejowski, Marian Antoni, Anna Maria Barszcz, and Zbigniew Stachura. “Elastic Flexural-Torsional Buckling of Steel I-Section Members Unrestrained Between End Supports”. Archives of Civil Engineering 67, no. 1 (March 30, 2021): 635–656. Accessed October 19, 2026. https://wydawnictwo.pan.pl/index.php/ace/article/view/3753.