Harris, William E.; Blakeslee, John P.; Whitmore, Bradley C.; Gnedin, Oleg Y.; Geisler, Douglas; Rothberg, Barry (2016). «Globular Cluster Systems in Brightest Cluster Galaxies. II. NGC 6166». The Astrophysical Journal817 (1): 17pp. Bibcode:2016ApJ...817...58H. arXiv:1511.08493. doi:10.3847/0004-637X/817/1/58.
Harris, William E.; Blakeslee, John P.; Whitmore, Bradley C.; Gnedin, Oleg Y.; Geisler, Douglas; Rothberg, Barry (2016). «Globular Cluster Systems in Brightest Cluster Galaxies. II. NGC 6166». The Astrophysical Journal817 (1): 17pp. Bibcode:2016ApJ...817...58H. arXiv:1511.08493. doi:10.3847/0004-637X/817/1/58.
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Harris, William E.; Blakeslee, John P.; Whitmore, Bradley C.; Gnedin, Oleg Y.; Geisler, Douglas; Rothberg, Barry (2016). «Globular Cluster Systems in Brightest Cluster Galaxies. II. NGC 6166». The Astrophysical Journal817 (1): 17pp. Bibcode:2016ApJ...817...58H. arXiv:1511.08493. doi:10.3847/0004-637X/817/1/58.