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)
Abdel-Fattah Attia, H.A. Ismail1, I.M. Selim, A.M. Osman1, I.A. Isaa, M.A. Marie et A.A. Shaker, « Stellar Population Analysis of Galaxies based on Genetic Algorithms », Chinese Journal of Astronomy and Astrophysics, vol. 5#4, , p. 347-355 (DOI10.1088/1009-9271/5/4/002, Bibcode2005ChJAA...5..347A, lire en ligne)
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)
Abdel-Fattah Attia, H.A. Ismail1, I.M. Selim, A.M. Osman1, I.A. Isaa, M.A. Marie et A.A. Shaker, « Stellar Population Analysis of Galaxies based on Genetic Algorithms », Chinese Journal of Astronomy and Astrophysics, vol. 5#4, , p. 347-355 (DOI10.1088/1009-9271/5/4/002, Bibcode2005ChJAA...5..347A, lire en ligne)
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)
A.M. Garcia, « General study of group membership. II - Determination of nearby groups », Astronomy and Astrophysics Supplement Series, vol. 100 #1, , p. 47-90 (Bibcode1993A&AS..100...47G)
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Abdel-Fattah Attia, H.A. Ismail1, I.M. Selim, A.M. Osman1, I.A. Isaa, M.A. Marie et A.A. Shaker, « Stellar Population Analysis of Galaxies based on Genetic Algorithms », Chinese Journal of Astronomy and Astrophysics, vol. 5#4, , p. 347-355 (DOI10.1088/1009-9271/5/4/002, Bibcode2005ChJAA...5..347A, lire en ligne)