Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I. και άλλοι. (February 2003). «Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations». Astrophysical Journal583 (2): 712–726. doi:10.1086/345430. Bibcode: 2003ApJ...583..712J.
Attia, Abdel-Fattah; Ismail, H. A.; Selim, I. M.; Osman, A. M. και άλλοι. (August 2005). «Stellar Population Analysis of Galaxies based on Genetic Algorithms». Chinese Journal of Astronomy and Astrophysics5 (4): 347–355. doi:10.1088/1009-9271/5/4/002. Bibcode: 2005ChJAA...5..347A.
Graham, Alister W. (November 2008), «Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values», Publications of the Astronomical Society of Australia25 (4): 167–175, doi:10.1071/AS08013
G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). «Nearby Optical Galaxies: Selection of the Sample and Identification of Groups». Astrophysical Journal543 (1): 178–194. doi:10.1086/317070. Bibcode: 2000ApJ...543..178G.
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Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I. και άλλοι. (February 2003). «Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations». Astrophysical Journal583 (2): 712–726. doi:10.1086/345430. Bibcode: 2003ApJ...583..712J.
Attia, Abdel-Fattah; Ismail, H. A.; Selim, I. M.; Osman, A. M. και άλλοι. (August 2005). «Stellar Population Analysis of Galaxies based on Genetic Algorithms». Chinese Journal of Astronomy and Astrophysics5 (4): 347–355. doi:10.1088/1009-9271/5/4/002. Bibcode: 2005ChJAA...5..347A.
P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (1992). «Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members». Astronomy and Astrophysics Supplement93: 211–233. Bibcode: 1992A&AS...93..211F.
A. Garcia (1993). «General study of group membership. II - Determination of nearby groups». Astronomy and Astrophysics Supplement100: 47–90. Bibcode: 1993A&AS..100...47G.
G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). «Nearby Optical Galaxies: Selection of the Sample and Identification of Groups». Astrophysical Journal543 (1): 178–194. doi:10.1086/317070. Bibcode: 2000ApJ...543..178G.