Norkus, Arnoldas, and Romanas Karkauskas. “Stepped Optimization Algorithm for light‐weight elastic‐plastic Structures Considering Load Combinations”. Technological and Economic Development of Economy 11, no. 4 (December 31, 2005): 302-309. Accessed March 28, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/8553.