00672naa#a2200205#i#450# EN\\bibl\7469 20260310185733.2 2712-9640 20151217b2015####ek#y0engy0150####ca RUS RU Spatial distribution of total electron content in the Arctic region of Russia from GPS data Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2015 6 с. Journal article local Perevalova Natalia Petrovna Romanova Elena Borisovna Katashevtseva Darya Dmitrievna Timofeeva Olga Valer'evna ras.editorum.ru