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Alister W. Graham, « Populating the galaxy velocity dispersion – supermassive black hole mass diagram: A catalogue of (Mbh, σ) values », Publications of the Astronomical Society of Australia, vol. 25#4, , p. 167-175, table 1 page 174 (DOI10.1088/1009-9271/5/4/002, Bibcode2005ChJAA...5..347A, lire en ligne)
Adebusola B. Alabi, Duncan A. Forbes, Aaron J. Romanowsky et al., « The SLUGGS survey: the mass distribution in early-type galaxies within five effective radii and beyond », Monthly Notices of the Royal Astronomical Society, vol. 460#4, , p. 3838-3860 (DOI10.1093/mnras/stw1213, Bibcode2016MNRAS.460.3838A, lire en ligne)
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Alister W. Graham, « Populating the galaxy velocity dispersion – supermassive black hole mass diagram: A catalogue of (Mbh, σ) values », Publications of the Astronomical Society of Australia, vol. 25#4, , p. 167-175, table 1 page 174 (DOI10.1088/1009-9271/5/4/002, Bibcode2005ChJAA...5..347A, lire en ligne)
Adebusola B. Alabi, Duncan A. Forbes, Aaron J. Romanowsky et al., « The SLUGGS survey: the mass distribution in early-type galaxies within five effective radii and beyond », Monthly Notices of the Royal Astronomical Society, vol. 460#4, , p. 3838-3860 (DOI10.1093/mnras/stw1213, Bibcode2016MNRAS.460.3838A, lire en ligne)
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Abraham Mahtessian, « Groups of galaxies. III. Some empirical characteristics », Astrophysics, vol. 41 #3, , p. 308-321 (DOI10.1007/BF03036100, lire en ligne, consulté le )