APA (7th ed.) Citation

Wielen, R., Schwan, H., Dettbarn, C., Jahreiß, H., & Lenhardt, H. (1998). The sixth catalogue of fundamental stars (FK6) and the problem of double stars. The message of the angles - astrometry from 1798 to 1998.

Chicago Style (17th ed.) Citation

Wielen, Roland, Heiner Schwan, Christian Dettbarn, Hartmut Jahreiß, and Helmut Lenhardt. "The Sixth Catalogue of Fundamental Stars (FK6) and the Problem of Double Stars." The Message of the Angles - Astrometry from 1798 to 1998 1998.

MLA (9th ed.) Citation

Wielen, Roland, et al. "The Sixth Catalogue of Fundamental Stars (FK6) and the Problem of Double Stars." The Message of the Angles - Astrometry from 1798 to 1998, 1998.