Sobczyk, Szymon. “Optimal Height of Free-Ends Prefabricated Reinforced Concrete Beam With Rectangular Cross-Section”. Budownictwo i Architektura 12, no. 4 (December 11, 2013): 061–070. Accessed July 22, 2024. https://ph.pollub.pl/index.php/bia/article/view/1962.