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