Yurchenko, V., Peleshko, I. and Rusyn, P. 2024. Optimization of cross-sectional dimensions of castellated beams with hexagonal openings. Eastern-European Journal of Enterprise Technologies. 3, 7 (129) (Jun. 2024), 6–16. DOI:https://doi.org/10.15587/1729-4061.2024.304803.