Henry C. Ferguson, « Population studies in groups and clusters of galaxies. II - A catalog of galaxies in the central 3.5 deg of the Fornax Cluster », Astronomical Journal, vol. 98, , p. 367-418, p378 (DOI10.1086/115152, Bibcode1989AJ.....98..367F, 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)
Henry C. Ferguson, « Population studies in groups and clusters of galaxies. II - A catalog of galaxies in the central 3.5 deg of the Fornax Cluster », Astronomical Journal, vol. 98, , p. 367-418, p378 (DOI10.1086/115152, Bibcode1989AJ.....98..367F, lire en ligne)
articles.adsabs.harvard.edu
Henry C. Ferguson, « Population studies in groups and clusters of galaxies. II - A catalog of galaxies in the central 3.5 deg of the Fornax Cluster », Astronomical Journal, vol. 98, , p. 367-418, p378 (DOI10.1086/115152, Bibcode1989AJ.....98..367F, lire en ligne)