00765naa#a2200229#i#450# EN\INFRA-M\bibl\51424 20241222131123.7 2500-0535 20230328b2023####ek#y0engy0150####ca ENG RU Application of convolution neural networks for critical frequency fₒF2 prediction Journal article Moscow INFRA-M Academic Publishing LLC. 2023 11 с. Journal article local Астрономия. Геодезия. 52 ENG Salimov Boris Gudratovich Berngardt Oleg Igorevich Hmelnov Aleksey Evgenyevich Ratovsky Konstantin Gennadyevich Kusonsky Oleg Aleksandrovich zh-szf.ru