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Turnrose, Barry E.; Rood, Herbert J. (1970). “On the Hypothesis that the Coma Cluster is Stabilized by a Massive, Ionized Intergalactic Gas”. The Astrophysical Journal159: 773. Bibcode: 1970ApJ...159..773T. doi:10.1086/150354. ISSN0004-637X.
Turnrose, Barry E.; Rood, Herbert J. (1970). “On the Hypothesis that the Coma Cluster is Stabilized by a Massive, Ionized Intergalactic Gas”. The Astrophysical Journal159: 773. Bibcode: 1970ApJ...159..773T. doi:10.1086/150354. ISSN0004-637X.
Meekins, John F.; Fritz, Gilbert; Chubb, Talbot A.; Friedman, H.; Henry, Richard C. (1971). “Physical Sciences: X-rays from the Coma Cluster of Galaxies”. Nature231 (5298): 107–108. doi:10.1038/231107a0. ISSN0028-0836.