Vestergaard, M., & Osmer, P. S. (2009). Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-selected Sample of the SDSS Fall Equatorial Stripe. The Astrophysical journal, 699(1), 800-816. https://doi.org/10.1088/0004-637X/699/1/800
Chicago Style (17th ed.) CitationVestergaard, M., and Patrick S. Osmer. "Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-selected Sample of the SDSS Fall Equatorial Stripe." The Astrophysical Journal 699, no. 1 (2009): 800-816. https://doi.org/10.1088/0004-637X/699/1/800.
MLA (9th ed.) CitationVestergaard, M., and Patrick S. Osmer. "Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-selected Sample of the SDSS Fall Equatorial Stripe." The Astrophysical Journal, vol. 699, no. 1, 2009, pp. 800-816, https://doi.org/10.1088/0004-637X/699/1/800.