00710naa#a2200193#i#450# EN\INFRA-M\bibl\57426 20241222175303.7 2712-9640 20230629b2023####ek#y0engy0150####ca RU Spectral features of ionospheric plasma waves excited by powerful HF radio waves radiated at frequencies near electron gyroharmonics and F2-layer critical frequency Journal article Moscow INFRA-M Academic Publishing LLC. 2023 9 с. Journal article local Физика. 53 Borisova Tatiana Dmitrievna Blagoveshchenskaya Nataly Fedorovna Kalishin Alexey Sergeevich zh-szf.ru