00769naa#a2200205#i#450# EN\\bibl\16405 20260312120744.4 2500-0535 20170505b2017####ek#y0engy0150####ca ENG RU Estimating the absolute total electron content based on single-frequency satellite radio navigation GPS/GLONASS data Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2017 9 с. Journal article local Геология. Геологические и геофизические науки. 55 ENG Yasyukevich Yury Vladimirovich Mylnikova Anna Aleksandrovna Ivanov Vsevolod Borisovich ras.editorum.ru