Sanwal, B. B.; Rautela, B. S.; Joshi, G. C.
(1988)
Three spectrograms of the cepheid Alpha Ursae Minoris (Polaris) taken at a dispersion of 17.8 Å mm on 18, 19, and 20 January, 1971 have been analysed for the determination of the abundances of some elements. The analysis ...