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Dahlem, M. και άλλοι. (October 2006). «Dependence of radio halo properties on star formation activity and galaxy mass». Astronomy and Astrophysics457 (1): 121–131. doi:10.1051/0004-6361:20054787. Bibcode: 2006A&A...457..121D.
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Kondapally, Rohit; Russell, George A.; Conselice, Christopher J.; Penny, Samantha J. (December 2018). «Faint satellite population of the NGC-3175 Group - a Local Group analogue». Monthly Notices of the Royal Astronomical Society481 (2): 1759–1773. doi:10.1093/mnras/sty2333. Bibcode: 2018MNRAS.481.1759K.
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«Galactic Diversity». www.spacetelescope.org (στα Αγγλικά). Ανακτήθηκε στις 10 Δεκεμβρίου 2019.
u-strasbg.fr
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