Ghez, A. M.; et al. (decembar 2008). „Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits”. Astrophysical Journal. 689 (2): 1044—1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738.
Boehle, A.; Ghez, A. M.; Schödel, R.; Meyer, L.; Yelda, S.; Albers, S.; Martinez, G. D.; Becklin, E. E.; Do, T.; Lu, J. R.; Matthews, K.; Morris, M. R.; Sitarski, B.; Witzel, G (19. 7. 2016). „An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis”. The Astrophysical Journal. 830 (1): 17. Bibcode:2016ApJ...830...17B. arXiv:1607.05726. doi:10.3847/0004-637X/830/1/17.
Ghez, A. M.; et al. (decembar 2008). „Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits”. Astrophysical Journal. 689 (2): 1044—1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738.
Boehle, A.; Ghez, A. M.; Schödel, R.; Meyer, L.; Yelda, S.; Albers, S.; Martinez, G. D.; Becklin, E. E.; Do, T.; Lu, J. R.; Matthews, K.; Morris, M. R.; Sitarski, B.; Witzel, G (19. 7. 2016). „An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis”. The Astrophysical Journal. 830 (1): 17. Bibcode:2016ApJ...830...17B. arXiv:1607.05726. doi:10.3847/0004-637X/830/1/17.
Ghez, A. M.; et al. (decembar 2008). „Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits”. Astrophysical Journal. 689 (2): 1044—1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738.
Boehle, A.; Ghez, A. M.; Schödel, R.; Meyer, L.; Yelda, S.; Albers, S.; Martinez, G. D.; Becklin, E. E.; Do, T.; Lu, J. R.; Matthews, K.; Morris, M. R.; Sitarski, B.; Witzel, G (19. 7. 2016). „An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis”. The Astrophysical Journal. 830 (1): 17. Bibcode:2016ApJ...830...17B. arXiv:1607.05726. doi:10.3847/0004-637X/830/1/17.