00632naa#a2200193#i#450# EN\INFRA-M\bibl\7279 20250428132651.1 2712-9640 20151217b2015####ek#y0engy0150####ca RUS RU Interpretation of oblique-incidence ionograms under the assumption of a spherically stratified ionosphere Journal article Moscow INFRA-M Academic Publishing LLC. 2015 5 с. Journal article local Laryunin Oleg Albertovich Podlesnyi Aleksey Vitalyevich Romanovskii Oleg Anatol'evich zh-szf.ru