APA (7th ed.) Citation

Wielen, R. (1981). On the measurement of proper motions of star clusters with the european astrometry satellite HIPPARCOS. Mitteilungen der Astronomischen Gesellschaft, 54, .

Chicago Style (17th ed.) Citation

Wielen, Roland. "On the Measurement of Proper Motions of Star Clusters with the European Astrometry Satellite HIPPARCOS." Mitteilungen Der Astronomischen Gesellschaft 54 (1981).

MLA (9th ed.) Citation

Wielen, Roland. "On the Measurement of Proper Motions of Star Clusters with the European Astrometry Satellite HIPPARCOS." Mitteilungen Der Astronomischen Gesellschaft, vol. 54, 1981.