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Brown, Robert L. (1982-11-01), “Precessing jets in Sagittarius A - Gas dynamics in the central parsec of the galaxy”, Astrophysical Journal262: 110-119, Bibcode: 1982ApJ...262..110B, doi:10.1086/160401
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Backer, D. C.; Sramek, R. A. (1999-10), “Proper Motion of the Compact, Nonthermal Radio Source in the Galactic Center, Sagittarius A*”, Astrophysical Journal524 (2): 805-815, Bibcode: 1999ApJ...524..805B, doi:10.1086/307857
Maillard, J. P.; et al. (2004-08), “The nature of the Galactic Center source IRS 13 revealed by high spatial resolution in the infrared”, Astronomy and Astrophysics423: 155-167, Bibcode: 2004A&A...423..155M, doi:10.1051/0004-6361:20034147
Wardle, Mark; Yusef-Zadeh, Farhad (1992-03-10), “Gravitational lensing by a massive black hole at the Galactic center”, Astrophysical Journal387: L65-L68, Bibcode: 1992ApJ...387L..65W, doi:10.1086/186306
Schödel, R.; et al. (2002-10-17), “A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way”, Nature419 (6908): 694-696, Bibcode: 2002Natur.419..694S, doi:10.1038/nature01121
Ghez, A. M.; et al. (2008-12), “Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits”, Astrophysical Journal689 (2): 1044-1062, Bibcode: 2008ApJ...689.1044G, doi:10.1086/592738
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An, Deokkeun; Ramírez, Solange V.; Sellgren, Kris (2013-06), “The Galactic Center: Not an Active Galactic Nucleus”, Astrophysical Journal Supplement206 (2): 20, Bibcode: 2013ApJS..206...20A, doi:10.1088/0067-0049/206/2/20
Gillessen, S.; et al. (2012-01-05), “A gas cloud on its way towards the supermassive black hole at the Galactic Centre”, Nature481 (7379): 51-54, Bibcode: 2012Natur.481...51G, doi:10.1038/nature10652
de la Fuente Marcos, R.; de la Fuente Marcos, C. (2013-08), “Colliding with G2 near the Galactic Centre: a geometrical approach”, Monthly Notices of the Royal Astronomical Society435 (1): L19-L23, Bibcode: 2013MNRAS.435L..19D, doi:10.1093/mnrasl/slt085
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Balick, Bruce; Brown, Robert L. (1974-12-01), “Intense sub-arcsecond structure in the galactic center”, Astrophysical Journal194: 265-270, Bibcode: 1974ApJ...194..265B, doi:10.1086/153242
Brown, Robert L. (1982-11-01), “Precessing jets in Sagittarius A - Gas dynamics in the central parsec of the galaxy”, Astrophysical Journal262: 110-119, Bibcode: 1982ApJ...262..110B, doi:10.1086/160401
Doeleman, Sheperd S.; et al. (2008-09-04), “Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre”, Nature455 (7209): 78, Bibcode: 2008Natur.455...78D, doi:10.1038/nature07245
Backer, D. C.; Sramek, R. A. (1999-10), “Proper Motion of the Compact, Nonthermal Radio Source in the Galactic Center, Sagittarius A*”, Astrophysical Journal524 (2): 805-815, Bibcode: 1999ApJ...524..805B, doi:10.1086/307857
Maillard, J. P.; et al. (2004-08), “The nature of the Galactic Center source IRS 13 revealed by high spatial resolution in the infrared”, Astronomy and Astrophysics423: 155-167, Bibcode: 2004A&A...423..155M, doi:10.1051/0004-6361:20034147
Wardle, Mark; Yusef-Zadeh, Farhad (1992-03-10), “Gravitational lensing by a massive black hole at the Galactic center”, Astrophysical Journal387: L65-L68, Bibcode: 1992ApJ...387L..65W, doi:10.1086/186306
Schödel, R.; et al. (2002-10-17), “A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way”, Nature419 (6908): 694-696, Bibcode: 2002Natur.419..694S, doi:10.1038/nature01121
Ghez, A. M.; et al. (2008-12), “Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits”, Astrophysical Journal689 (2): 1044-1062, Bibcode: 2008ApJ...689.1044G, doi:10.1086/592738
Eisenhauer, F.; et al. (2005-07), “SINFONI in the Galactic Center: Young Stars and Infrared Flares in the Central Light-Month”, Astrophysical Journal628 (1): 246-259, Bibcode: 2005ApJ...628..246E, doi:10.1086/430667
An, Deokkeun; Ramírez, Solange V.; Sellgren, Kris (2013-06), “The Galactic Center: Not an Active Galactic Nucleus”, Astrophysical Journal Supplement206 (2): 20, Bibcode: 2013ApJS..206...20A, doi:10.1088/0067-0049/206/2/20
Gillessen, S.; et al. (2012-01-05), “A gas cloud on its way towards the supermassive black hole at the Galactic Centre”, Nature481 (7379): 51-54, Bibcode: 2012Natur.481...51G, doi:10.1038/nature10652
de la Fuente Marcos, R.; de la Fuente Marcos, C. (2013-08), “Colliding with G2 near the Galactic Centre: a geometrical approach”, Monthly Notices of the Royal Astronomical Society435 (1): L19-L23, Bibcode: 2013MNRAS.435L..19D, doi:10.1093/mnrasl/slt085