Variability in stars and galaxies : proceedings of the fifth European regional meeting in astronomy, held in Liege, Belgium, 28 July- 1 August, 1980 / jointly sponsored by the International astronomical union and the Astronomy and astrophysics division of the European physical society
European regional meeting in astronomy(5 : Liège : 1980)
International Astronomical Union (medarbetare)
Alternativt namn: !AU
Alternativt namn: IAU
Alternativt namn: Union astronomique internationale