https://collaborate.princeton.edu/en/publications/biases-in-virial-black-hole-masses-an-sdss-perspective/
Biases in virial black hole masses: An SDSS perspective - Princeton University
black holebiases
https://scholars.uky.edu/es/publications/the-entire-virial-radius-of-the-fossil-cluster-rxj-1159-5531-ii-d/
The entire virial radius of the fossil cluster RXJ 1159 + 5531. II. Dark matter and baryon fraction...