Subject
Space and Planetary Science,Aerospace Engineering,General Earth and Planetary Sciences,Atmospheric Science,Geophysics,Astronomy and Astrophysics
Reference4 articles.
1. Geomagnetic Control of Fe-Layer Ionization;Appleton;Nature,1948
2. Discussion of the Valley Problem in H(h) Analysis of Ionograms;Gulyaeva;Adv. Space Res.,1990
3. Strahlwege von Radiowellen in der Ionosphere;Poeverlein;Zschr. angew. Physik,1950