Author: WESTERLUND, Bengt.
Title: Luminosity Effects and Colour-Equivalents as Measured in Short Stellar Spectra. III. Summary of classification criteria Investigation of the region of the open cluster in Coma Berenices. With 16 figures in the text.
Description: Stockholm, Almqvist & Wiksells, 1953,. 305x230mm, 50 pages, paperback.

Keywords: physique sciences