10 citations as recorded by crossref.

1. Equinoctial Asymmetry in the Upper Ionosphere: Comparison of Satellite Observations and Models L. Lomidze et al.
2. The increase of the ionospheric activity as measured by GPS R. Warnant & E. Pottiaux
3. THE DEPENDENCE ON THE GEOMAGNETIC ACTIVITY OF CHANGES IN THE foF2 VALUES AT THE HIGH LATITUDES İ. ÜNAL et al.
4. Changes in the F1 region electron density during geomagnetic storms at low solar activity D. Buresova & J. Lastovicka
5. Investigation of TEC variations over the magnetic equatorial and equatorial anomaly regions of the African sector B. Oryema et al.
6. The Regional TEC Model Developed in Graz — A Progress Report E. Feichter & R. Leitinger
7. Annual variations of the ionosphere: A review based on MU radar observations N. Balan et al.
8. COSTTEC — The electron content monthly median map adopted by COST 251 R. Leitinger & E. Feichter
9. Seasonal Variation of O/N2 on Different Pressure Levels From GUVI Limb Measurements T. Yu et al.
10. Annual and semiannual variations of the midlatitude ionosphere under low solar activity S. Kawamura et al.