Blanton, Elizabeth L.; Sarazin, Craig L.; McNamara, Brian R.; Clarke, T. E. (2004-09-10). «Chandra Observation of the Central Region of the Cooling Flow Cluster Abell 262: A Radio Source that is a Shadow of its Former Self?». The Astrophysical Journal612 (2): 817–824. doi:10.1086/422677. ISSN0004-637X. Bibcode: 2004ApJ...612..817B.
M., Garcia, A. (July 1993). «General study of group membership. II – Determination of nearby groups» (στα αγγλικά). Astronomy and Astrophysics Supplement Series100: 47. ISSN0365-0138. Bibcode: 1993A&AS..100...47G.
Blanton, Elizabeth L.; Sarazin, Craig L.; McNamara, Brian R.; Clarke, T. E. (2004-09-10). «Chandra Observation of the Central Region of the Cooling Flow Cluster Abell 262: A Radio Source that is a Shadow of its Former Self?». The Astrophysical Journal612 (2): 817–824. doi:10.1086/422677. ISSN0004-637X. Bibcode: 2004ApJ...612..817B.
«NGC 703». sim-id. Ανακτήθηκε στις 24 Δεκεμβρίου 2018.
worldcat.org
M., Garcia, A. (July 1993). «General study of group membership. II – Determination of nearby groups» (στα αγγλικά). Astronomy and Astrophysics Supplement Series100: 47. ISSN0365-0138. Bibcode: 1993A&AS..100...47G.
Blanton, Elizabeth L.; Sarazin, Craig L.; McNamara, Brian R.; Clarke, T. E. (2004-09-10). «Chandra Observation of the Central Region of the Cooling Flow Cluster Abell 262: A Radio Source that is a Shadow of its Former Self?». The Astrophysical Journal612 (2): 817–824. doi:10.1086/422677. ISSN0004-637X. Bibcode: 2004ApJ...612..817B.