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I. Discours introductif au symposium sur l'evolution des etoiles

Published online by Cambridge University Press:  02 August 2017

V A. Ambartsumian*
Affiliation:
Membre correspondant de l'Académic des Sciences de l'U.R.S.S.

Abstract

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Type
Part IV Symposia
Copyright
Copyright © Cambridge University Press 1954

References

Blaauw, A.: The age and evolution of the ζ Persei group of O- and B-type stars. The evolution of expanding stellar Associations; the age and origin of the Scorpio-Centaurus Group, B.A.N No. 433 (1952).Google Scholar
Blaauw, A.: A Study of the Scorpio-Centaurus Cluster, Groningen Publ. No. 52 (1946).Google Scholar
Roman, Nancy Grace: The Ursa Major Group, Ap. J 110, 205 (1949).Google Scholar