A.M. Garcia, « General study of group membership. II - Determination of nearby groups », Astronomy and Astrophysics Supplement Series, vol. 100, no 1, , p. 47-90 (Bibcode1993A&AS.100..47G, lire en ligne)
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A.M. Garcia, « General study of group membership. II - Determination of nearby groups », Astronomy and Astrophysics Supplement Series, vol. 100, no 1, , p. 47-90 (Bibcode1993A&AS.100..47G, lire en ligne)