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- [4] ABOUT SEMIANNUAL VARIATIONS OF NIGHT RADIATION OF UPPER-ATMOSPHERE GEOMAGNETIZM I AERONOMIYA, 1976, 16 (06): : 1042 - 1048
- [8] ON ACCURACY OF MEASURED VALUES OF UPPER-ATMOSPHERE DENSITY JOURNAL OF GEOPHYSICAL RESEARCH, 1965, 70 (13): : 3247 - +