Usenko, V. H., and Kodak О. А. “PROBABILITY OF THE UTILITY NETWORKS DOUBLE-RING STRUCTURES’ CONNECTIVITY FOR SITES WITH VARIOUS RELIABILITY”. Academic journal Industrial Machine Building Civil Engineering 1, no. 50 (April 11, 2018): 270–277. Accessed December 7, 2025. https://journals.nupp.edu.ua/znp/article/view/1085.