Brauns, Janis, and Karlis Rocens. “The Effect of Material Strength on the Behaviour of concrete‐filled Steel Elements”. Journal of Civil Engineering and Management 10, no. 3 (September 30, 2004): 177-182. Accessed March 29, 2024. https://journals.vilniustech.lt/index.php/JCEM/article/view/8979.