Semiempirical calculation of gf values: Sc II (3d+4s) --(3d+4s) 4p a detailed example - Kurucz, R. L. (Cambridge, Mass. : Smithsonian Institution, Astrophysical Observatory, 1973)
Cover title: Atmospheric densities from drag on five satellites
At head of title: Research in space science
Keywords: Plasma astrophysics; Astrophysics