APA (7th ed.) Citation

Hummel, C. A., & Stahl, O. (2013). Dynamical mass of the O-type supergiant in ζ Orionis A. Astronomy and astrophysics, 554, . https://doi.org/10.1051/0004-6361/201321434

Chicago Style (17th ed.) Citation

Hummel, Christian A., and Otmar Stahl. "Dynamical Mass of the O-type Supergiant in ζ Orionis A." Astronomy and Astrophysics 554 (2013). https://doi.org/10.1051/0004-6361/201321434.

MLA (9th ed.) Citation

Hummel, Christian A., and Otmar Stahl. "Dynamical Mass of the O-type Supergiant in ζ Orionis A." Astronomy and Astrophysics, vol. 554, 2013, https://doi.org/10.1051/0004-6361/201321434.