Stephanie J. Bush et Eric M. Wilcots, « Neutral Hydrogen in the Interacting Magellanic Spirals NGC 4618 and NGC 4625 », The Astronomical Journal, vol. 128, no 6, , p. 2789-2796 (DOI10.1086/425876, Bibcode2004AJ....128.2789B, lire en ligne [PDF])
Stephanie J. Bush et Eric M. Wilcots, « Neutral Hydrogen in the Interacting Magellanic Spirals NGC 4618 and NGC 4625 », The Astronomical Journal, vol. 128, no 6, , p. 2789-2796 (DOI10.1086/425876, Bibcode2004AJ....128.2789B, lire en ligne [PDF])
Abraham Mahtessian, « Groups of galaxies. III. Some empirical characteristics », Astrophysics, vol. 41 #3, , p. 308-321 (DOI10.1007/BF03036100, lire en ligne, consulté le )
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Stephanie J. Bush et Eric M. Wilcots, « Neutral Hydrogen in the Interacting Magellanic Spirals NGC 4618 and NGC 4625 », The Astronomical Journal, vol. 128, no 6, , p. 2789-2796 (DOI10.1086/425876, Bibcode2004AJ....128.2789B, lire en ligne [PDF])
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)
Abraham Mahtessian, « Groups of galaxies. III. Some empirical characteristics », Astrophysics, vol. 41 #3, , p. 308-321 (DOI10.1007/BF03036100, lire en ligne, consulté le )