İbrahimov, Bayram, Elshan Hashimov, Aziz Talibov, and Arif Hasanov. “RESEARCH AND ANALYSIS INDICATORS FIBER-OPTIC COMMUNICATION LINES USING SPECTRAL TECHNOLOGIES”. Advanced Information Systems 6, no. 1 (April 6, 2022): 61–64. Accessed November 24, 2024. http://ais.khpi.edu.ua/article/view/254205.