01184naa#a2200313#i#450# EN\INFRA-M\bibl\36168 20241203221019.2 2712-9640 20200922b2020####ek#y0engy0150####ca RUS RU Amplitude variations of the reflected signal during vertical sounding of the ionosphere at middle latitudes Journal article Moscow INFRA-M Academic Publishing LLC. 2020 10 с. Радиофизика. 03.04.03 local Journal article local Геология. Геологические и геофизические науки. 55 RUS Науки о Земле. 26 bbk Физико-математические науки. 61 tbk Физика плазмы. 29.27 grnti Yusupov Kamil Maratovich Mathews John D. Maruyama Takashi Akchurin Adel Dzhavidovich Tolstikov Maksim Valeryevich Sherstyukov Oleg Nikolaevich Filippova Elena Alekseevna Safiullin Anvar Subanovich zh-szf.ru