Łagoda, Grażyna, and Marek Łagoda. “Strength Analysis of Masonry Arch Bridges”. Roads and Bridges - Drogi i Mosty 4, no. 4 (April 1, 2005): 31–72. Accessed July 22, 2024. https://rabdim.pl/index.php/rb/article/view/v4n4p31.