Electron density profiles in ionosphere and exosphere proceedings of the Nato Advanced Study Institute held at Finse, Norway, April 1965
Jon Frihagen; Edward V Appleton
Amsterdam North-Holland Publishing Company / John Wiley & Sons, New York 1966
Localização: IAG - Inst. Ast. Geo. Ciên. Atmosféricas (551.51060 E39 ) e outros locais(Acessar)