I. D. Karachentsev, M. E. Sharina, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachetseva, A. Sarajedini, P. Seitzer (2002). "New distances to galaxies in the Centaurus A group". Astronomy and Astrophysics385 (1): 21–31. Bibcode:2002A&A...385...21K. doi:10.1051/0004-6361:20020042.
Armando, Gil de Paz; Boissier; Madore; Seibert; Boselli, Alessandro; Wyder, Ted K.; Thilker, David; Bianchi, Luciana (2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". Astrophysical Journal (ApJS)173 (2): 185–255. Bibcode:2007ApJS..173..185G. doi:10.1086/516636. arxiv=astro-ph/0606440
I. D. Karachentsev, M. E. Sharina, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachetseva, A. Sarajedini, P. Seitzer (2002). "New distances to galaxies in the Centaurus A group". Astronomy and Astrophysics385 (1): 21–31. Bibcode:2002A&A...385...21K. doi:10.1051/0004-6361:20020042.
Armando, Gil de Paz; Boissier; Madore; Seibert; Boselli, Alessandro; Wyder, Ted K.; Thilker, David; Bianchi, Luciana (2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". Astrophysical Journal (ApJS)173 (2): 185–255. Bibcode:2007ApJS..173..185G. doi:10.1086/516636. arxiv=astro-ph/0606440
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.