00629naa#a2200193#i#450# EN\INFRA-M\bibl\86525 20260318131329.3 2500-0535 20250326b2025####ek#y0engy0150####ca ENG RU Diurnal variations in characteristics of sporadic layer Eₛ over Irkutsk Journal article Moscow INFRA-M Academic Publishing LLC. 2025 6 с. Journal article local Астрономия. Геодезия. 52 ENG Voronova Ekaterina Yurevna Ratovsky Konstantin Gennadyevich iszf.editorum.ru