P., Fouque; E., Gourgoulhon; P., Chamaraux; G., Paturel (May 1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series (İngilizce). 93: 211. Bibcode:1992A&AS...93..211F. ISSN0365-0138.
Garcia, A. M. (July 1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series (İngilizce). 100: 47. Bibcode:1993A&AS..100...47G. ISSN0365-0138.
P., Fouque; E., Gourgoulhon; P., Chamaraux; G., Paturel (May 1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series (İngilizce). 93: 211. Bibcode:1992A&AS...93..211F. ISSN0365-0138.
Garcia, A. M. (July 1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series (İngilizce). 100: 47. Bibcode:1993A&AS..100...47G. ISSN0365-0138.