00891naa#a2200229#i#450# EN\INFRA-M\bibl\63911 20241121201941.4 2500-0535 20230930b2023####ek#y0engy0150####ca ENG RU Spectral analysis of IAR oscillations to determine the value and variability of the peak electron density NmF2 Journal article Moscow INFRA-M Academic Publishing LLC. 2023 10 с. Journal article local Астрономия. Геодезия. 52 Геология. Геологические и геофизические науки. 55 ENG Potapov Alexander Sergeevich Polyushkina Tatyana Nikolaevna Guglielmi Anatol Vladimirovich Ratovsky Konstantin Gennadyevich Moskalev Ilya Sergeevich zh-szf.ru