Bela, Sabo. “Analysis of N.O. Okerblom’s Method for Computerized Determination of the Deflection of Welded I-Beams”. Journal of Production Engineering 4, no. 4 (October 11, 2023): 91–104. Accessed November 22, 2024. http://sp.ftn.uns.ac.rs/index.php/jpe/article/view/763.