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* Sidney van den Bergh, ''The Galaxies of the Local Group''. Cantabrigiae: Cambridge University Press, 2000 {{Google Books|H0JMeoqFqEcC|Paginae selectae}}
* Sidney van den Bergh, "Updated Information on the Local Group" in ''Publications of the Astronomical Society of the Pacific'' vol. 112 (2000) pp. 529-536 [http://iopscience.iop.org/article/10.1086/316548 Textus]
* Julianne J. Dalcanton et al., "[https://iopscience.iop.org/article/10.1088/0067-0049/183/1/67/meta The ACS Nearby Galaxy Survey Treasury]" in ''Astrophysical Journal Supplement Series'' vol. 183 no. 1 (2009)
* Marla Geha et al., "[https://arxiv.org/abs/1705.06743 The SAGA Survey: I. Satellite Galaxy Populations Around Eight Milky Way Analogs]" (16 Septembris 2017) apud ''ArXiv.org'' pro ''Astrophysical Journal''
* I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov, "A Catalog of Neighboring Galaxies" in ''Astronomical Journal'' vol. 127 (2004) pp. 2031–2068 [http://iopscience.iop.org/article/10.1086/382905/meta;jsessionid=CF8C50A86F5D5A3D499498AF2B22B862.c3.iopscience.cld.iop.org Textus]