Gursky H, Kellogg E, Murray S, Leong C, Tananbaum H, Giacconi R. A strong X-ray source in the Coma cluster observed by Uhuru. Ap J. Aug 1971, 167 (8): L81–4. Bibcode:1971ApJ...167L..81G. doi:10.1086/180765.
Gursky H, Kellogg E, Murray S, Leong C, Tananbaum H, Giacconi R. A strong X-ray source in the Coma cluster observed by Uhuru. Ap J. Aug 1971, 167 (8): L81–4. Bibcode:1971ApJ...167L..81G. doi:10.1086/180765.
Colless, M. Coma Cluster. P Murdin (编). Encyclopedia of Astronomy and Astrophysics. Bristol Institute of Physics publishing. 2001 [2006-10-08]. (原始内容存档于2014-10-28).
Colless, M. Coma Cluster. P Murdin (编). Encyclopedia of Astronomy and Astrophysics. Bristol Institute of Physics publishing. 2001 [2006-10-08]. (原始内容存档于2014-10-28).