APA (7th ed.) Citation

Brandt, W., & Alexander, D. (2015). Cosmic X-ray surveys of distant active galaxies. Astronomy & Astrophysics Review, 23(1), 1. https://doi.org/10.1007/s00159-014-0081-z

Chicago Style (17th ed.) Citation

Brandt, W., and D. Alexander. "Cosmic X-ray Surveys of Distant Active Galaxies." Astronomy & Astrophysics Review 23, no. 1 (2015): 1. https://doi.org/10.1007/s00159-014-0081-z.

MLA (9th ed.) Citation

Brandt, W., and D. Alexander. "Cosmic X-ray Surveys of Distant Active Galaxies." Astronomy & Astrophysics Review, vol. 23, no. 1, 2015, p. 1, https://doi.org/10.1007/s00159-014-0081-z.