Goldsbury, Ryan; Richer, Harvey B.; Anderson, Jay; Dotter, Aaron; Sarajedini, Ata; Woodley, Kristin (December 2010), ”The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters”, The Astronomical Journal 140 (6): 1830–1837, doi:10.1088/0004-6256/140/6/1830, Bibcode: 2010AJ....140.1830G.
Kains, N.; Bramich, D.; Arellano Ferro, A.; Figuera Jaimes, R.; Jorgensen, U.G.; Giridhar, S.; Penny, M.T.; Alsubai, K.; et al. (2016), ”Estimating the parameters of globular cluster M 30 (NGC 7099) from time-series photometry”, Astronomy and Astrophysics 555 (1): 36–50, doi:10.1051/0004-6361/201321819, Bibcode: 2013A&A...555A..36K
Vande Putte, D.; Cropper, Mark (January 2009), ”Detecting the effect of globular cluster impacts on the disc of the Milky Way”, Monthly Notices of the Royal Astronomical Society 392 (1): 113–124, doi:10.1111/j.1365-2966.2008.14072.x, Bibcode: 2009MNRAS.392..113V
Dinescu, Dana I.; van Altena, William F.; Girard, Terrence M.; López, Carlos E. (January 1999), ”Space Velocities of Southern Globular Clusters. II. New Results for 10 Clusters”, The Astronomical Journal 117 (1): 277–285, doi:10.1086/300699, Bibcode: 1999AJ....117..277D
Lugger, Phyllis M.; Cohn, Haldan N.; Heinke, Craig O.; Grindlay, Jonathan E.; Edmonds, Peter D. (March 2007), ”Chandra X-Ray Sources in the Collapsed-Core Globular Cluster M30 (NGC 7099)”, The Astrophysical Journal 657 (1): 286–301, doi:10.1086/507572, Bibcode: 2007ApJ...657..286L
Howell, Justin H.; Guhathakurta, Puragra; Tan, Amy (March 2000), ”Radial Color Gradient and Main-Sequence Mass Segregation in M30 (NGC 7099)”, The Astronomical Journal 119 (3): 1259–1267, doi:10.1086/301270, Bibcode: 2000AJ....119.1259H
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Goldsbury, Ryan; Richer, Harvey B.; Anderson, Jay; Dotter, Aaron; Sarajedini, Ata; Woodley, Kristin (December 2010), ”The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters”, The Astronomical Journal 140 (6): 1830–1837, doi:10.1088/0004-6256/140/6/1830, Bibcode: 2010AJ....140.1830G.
Kains, N.; Bramich, D.; Arellano Ferro, A.; Figuera Jaimes, R.; Jorgensen, U.G.; Giridhar, S.; Penny, M.T.; Alsubai, K.; et al. (2016), ”Estimating the parameters of globular cluster M 30 (NGC 7099) from time-series photometry”, Astronomy and Astrophysics 555 (1): 36–50, doi:10.1051/0004-6361/201321819, Bibcode: 2013A&A...555A..36K
Shapley, Harlow; Sawyer, Helen B. (August 1927), ”A Classification of Globular Clusters”, Harvard College Observatory Bulletin 849 (849): 11–14, Bibcode: 1927BHarO.849...11S.
Vande Putte, D.; Cropper, Mark (January 2009), ”Detecting the effect of globular cluster impacts on the disc of the Milky Way”, Monthly Notices of the Royal Astronomical Society 392 (1): 113–124, doi:10.1111/j.1365-2966.2008.14072.x, Bibcode: 2009MNRAS.392..113V
Bone, N. M. (August 2008), ”Sky notes, 2008 August & September”, Journal of the British Astronomical Association 118 (4): 231–232, Bibcode: 2008JBAA..118..231B
Dinescu, Dana I.; van Altena, William F.; Girard, Terrence M.; López, Carlos E. (January 1999), ”Space Velocities of Southern Globular Clusters. II. New Results for 10 Clusters”, The Astronomical Journal 117 (1): 277–285, doi:10.1086/300699, Bibcode: 1999AJ....117..277D
Lugger, Phyllis M.; Cohn, Haldan N.; Heinke, Craig O.; Grindlay, Jonathan E.; Edmonds, Peter D. (March 2007), ”Chandra X-Ray Sources in the Collapsed-Core Globular Cluster M30 (NGC 7099)”, The Astrophysical Journal 657 (1): 286–301, doi:10.1086/507572, Bibcode: 2007ApJ...657..286L
Howell, Justin H.; Guhathakurta, Puragra; Tan, Amy (March 2000), ”Radial Color Gradient and Main-Sequence Mass Segregation in M30 (NGC 7099)”, The Astronomical Journal 119 (3): 1259–1267, doi:10.1086/301270, Bibcode: 2000AJ....119.1259H
