Usenko, Valerii, Oleg Vorontsov, Irina Usenko, and Olga Kodak. “Topological Importance of the Segments of the Technical System Structure”. Academic journal. Industrial Machine, Building Civil Engineering 1, no. 56 (September 30, 2021): 110–115. Accessed June 4, 2026. https://journals.nupp.edu.ua/znp/article/view/2515.