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- [3] Test of an ionospheric activity index using foF2 data in China 2018 12TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND ELECTROMAGNETIC THEORY (ISAPE), 2018,
- [8] A new ionospheric storm scale based on TEC and foF2 statistics SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, 2017, 15 (01): : 228 - 239