共 3 条
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[2]
A rapid method of obtaining accurate virtual heights from an ionogram. Piggott,W. R. J. Atmosph. Terr. Phys . 1959
[3]
The storm and post-storm evolution of energetic (35–560 keV) radiation belt electron distribution. Lyons,L. R.,Williams,D. J. Journal of Geophysical Research . 1975