Коваль, Ю.А., А.А. Костыря, С.Ю. Приймак, С.А. Плехно, and Х.Х. Асаад. “Allowance for Channel Instability of Passive Synchronization System of Time and Frequency Using Geostationary Satellites”. Radiotekhnika 3, no. 170 (September 29, 2012): 208–214. Accessed April 30, 2024. http://rt.nure.ua/article/view/174986.