Используемая литература
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2. Смирнов В.М. Решение обратной задачи радиопросвечивания ионосферы Земли градиентными методами // Радиотехника и электроника. 2001. №1. С.47-52.
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8. Mannucci A.J., Ho C.M., Lindqwister U.J. A global mapping technique for GPS-drived ionospheric TEC measurements // Radio Sci. 1998. V.33. N8. P.565-582.
9. Schaer S., Gurtner W., Feltens J. IONEX: The Ionosphere Map Exchange Format Version 1 // Proc. IGS AC Workshop. Darmstadt. Germany. February 9-11, 1998. P.233-247.