Nalapko, O.; Sova, O.; Shyshatskyi, A.; Hasan, A.; Velychko, V.; Trotsko, O. .; Merkotan, D.; Protas, N.; Lazuta, R.; Yakovchuk О. Analysis of Mathematical Models of Mobility of Communication Systems of Special Purpose Radio Communication Systems. TAPR 2021, 4, 39-44.