Renuka Pechetti, Seth Anil, Michele Cappellari, Richard McDermid, Mark den Brok, Steffen Mieske et Jay Strader, « Detection of Enhanced Central Mass-to-light Ratios in Low-mass Early-type Galaxies: Evidence for Black Holes? », The Astrophysical Journal, vol. 850#1, , p. 16 pages (DOI10.3847/1538-4357/aa9021, Bibcode2017ApJ...850...15P, lire en ligne [PDF])
Renuka Pechetti, Seth Anil, Michele Cappellari, Richard McDermid, Mark den Brok, Steffen Mieske et Jay Strader, « Detection of Enhanced Central Mass-to-light Ratios in Low-mass Early-type Galaxies: Evidence for Black Holes? », The Astrophysical Journal, vol. 850#1, , p. 16 pages (DOI10.3847/1538-4357/aa9021, Bibcode2017ApJ...850...15P, lire en ligne [PDF])
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Renuka Pechetti, Seth Anil, Michele Cappellari, Richard McDermid, Mark den Brok, Steffen Mieske et Jay Strader, « Detection of Enhanced Central Mass-to-light Ratios in Low-mass Early-type Galaxies: Evidence for Black Holes? », The Astrophysical Journal, vol. 850#1, , p. 16 pages (DOI10.3847/1538-4357/aa9021, Bibcode2017ApJ...850...15P, lire en ligne [PDF])
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)