1. Major phenomena of the equatorial ionosphere-thermosphere system under disturbed conditions;Abdu;J. Atmos. Sol. Terr. Phys.,1997
2. GPS-monitoring Verhnej Atmosfery Zemli. [GPS-Monitoring of the Earth's Upper Atmosphere];Afraymovich,2006
3. Wavelet analysis: basic theory and some applications;Astaf’eva;Phys. Usp.,1996
4. International reference ionosphere 2007: improvements and new parameters;Bilitza;Adv. Space Res.,2007
5. The international reference ionosphere: model update 2016. Geophysical research abstracts;Bilitza;EGU Gener. Assemb.,2016