APA (7th ed.) Citation

Wielen, R., Dettbarn, C., Jahreiß, H., Lenhardt, H., & Schwan, H. (1999). Indications on the binary nature of individual stars derived from a comparison of their HIPPARCOS proper motions with ground-based data: I. Basic principles. Astronomy and astrophysics, 346(?), .

Chicago Style (17th ed.) Citation

Wielen, Roland, Christian Dettbarn, Hartmut Jahreiß, Helmut Lenhardt, and Heiner Schwan. "Indications on the Binary Nature of Individual Stars Derived from a Comparison of Their HIPPARCOS Proper Motions with Ground-based Data: I. Basic Principles." Astronomy and Astrophysics 346, no. ? (1999).

MLA (9th ed.) Citation

Wielen, Roland, et al. "Indications on the Binary Nature of Individual Stars Derived from a Comparison of Their HIPPARCOS Proper Motions with Ground-based Data: I. Basic Principles." Astronomy and Astrophysics, vol. 346, no. ?, 1999.