01197naa#a2200313#i#450# EN\\bibl\36168 20260311233358.3 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 Irkutsk Institute of Solar-Terrestrial Physics SB RAS 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 ras.editorum.ru