APA (7th ed.) Citation

Heeren, P., Reffert, S., Trifonov, T., Wong, K. H., Lee, M. H., Lillo-Box, J., . . . Pallé, P. L. (2021). Precise radial velocities of giant stars: XV. Mysterious nearly periodic radial velocity variations in the eccentric binary ε Cygni. Astronomy and astrophysics, 647, . https://doi.org/10.1051/0004-6361/202040087

Chicago Style (17th ed.) Citation

Heeren, Paul, et al. "Precise Radial Velocities of Giant Stars: XV. Mysterious Nearly Periodic Radial Velocity Variations in the Eccentric Binary ε Cygni." Astronomy and Astrophysics 647 (2021). https://doi.org/10.1051/0004-6361/202040087.

MLA (9th ed.) Citation

Heeren, Paul, et al. "Precise Radial Velocities of Giant Stars: XV. Mysterious Nearly Periodic Radial Velocity Variations in the Eccentric Binary ε Cygni." Astronomy and Astrophysics, vol. 647, 2021, https://doi.org/10.1051/0004-6361/202040087.

Warning: These citations may not always be 100% accurate.