Meyer, L.; Ghez, A.M.; Schödel, R.; Yelda, S.; Boehle, A.; Lu, J.R.; Do, T.; Morris, M.R. και άλλοι. (4 Οκτωβρίου 2012). «The Shortest Known Period Star Orbiting our Galaxy’s Supermassive Black Hole».
Ghez, A.M. (Δεκέμβριος 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». Astrophysical Journal689 (2): 1044–1062. doi:10.1086/592738. Bibcode: 2008ApJ...689.1044G.
Ghez, A.M.; Salim, S.; Hornstein, S.D.; Tanner, A.; Lu, J.R.; Morris, M.; Becklin, E.E.; Duchêne, G. (Μαΐος 2005). «Stellar Orbits around the Galactic Center Black Hole». The Astrophysical Journal620 (2): 744–757. doi:10.1086/427175. Bibcode: 2005ApJ...620..744G.
Ghez, A.M. (Δεκέμβριος 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». Astrophysical Journal689 (2): 1044–1062. doi:10.1086/592738. Bibcode: 2008ApJ...689.1044G.
Ghez, A.M.; Salim, S.; Hornstein, S.D.; Tanner, A.; Lu, J.R.; Morris, M.; Becklin, E.E.; Duchêne, G. (Μαΐος 2005). «Stellar Orbits around the Galactic Center Black Hole». The Astrophysical Journal620 (2): 744–757. doi:10.1086/427175. Bibcode: 2005ApJ...620..744G.
"Precessing jets in Sagittarius A - Gas dynamics in the central parsec of the galaxy", R.L. Brown, Astrophysical Journal, Μέρος 1, 262, 1η Νοεμβ. 1982, σσ. 110-119, Bibcode:1982ApJ...262..110B.