00581naa#a2200169#i#450# EN\INFRA-M\bibl\5304 20241203222808.2 2712-9640 20150617b2015####ek#y0engy0150####ca RUS RU Spatial structure of plasma density perturbations, induced in the ionosphere modified by powerful HF radio waves: review of experimental results Journal article Moscow INFRA-M Academic Publishing LLC. 2015 26 с. Journal article local Frolov Vladimir Leontyevich naukaru.ru