Comparing Single-epoch Virial Black Hole Mass Estimators for Luminous QuasarsDOI: info:10.1088/0004-637X/753/2/125v. 753125
Shen, Yue and Liu, Xin. 2012. "Comparing Single-epoch Virial Black Hole Mass Estimators for Luminous Quasars." The Astrophysical Journal, 753 125. https://doi.org/10.1088/0004-637X/753/2/125.