Energy spectra of some of the brighter stars, by C.G. Abbot and L.B. Aldrich. (Smithsonian miscellaneous collections, v. 107, no. 19) (Publication 3914)
Energy spectra of some of the brighter stars, by C.G. Abbot and L.B. Aldrich.
(Smithsonian miscellaneous collections, v. 107, no. 19) (Publication 3914)