00821naa#a2200193#i#450# EN\\bibl\52223 20240419114602.5 2072-9502 20220728b2022####ek#y0engy0150####ca RU Methods of calculating influence of seasonality factor on propagation of radio waves in southern regions of Russia close to hydrospheric objects in ultra-high frequency range Journal article Astrakhan Astrakhan State Technical University 2022 9 с. Journal article local Изменение силы сигнала вследствие замираний (фединга). 621.391.812.3 Pishchin Oleg Nickolaevich Puzankov Dmitriy Sergeevich Liydkina Kseniya Sergeevna vestnik.astu.org