Simon, J. D. and Geha, M. «The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem». The Astrophysical Journal, 670, 1, Nov 2007, pàg. 313–331. arXiv: astro-ph/0706.0516. Bibcode: 2007ApJ...670..313S. DOI: 10.1086/521816.(anglès)
Simon, J. D. and Geha, M. «The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem». The Astrophysical Journal, 670, 1, Nov 2007, pàg. 313–331. arXiv: astro-ph/0706.0516. Bibcode: 2007ApJ...670..313S. DOI: 10.1086/521816.(anglès)
Simon, J. D. and Geha, M. «The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem». The Astrophysical Journal, 670, 1, Nov 2007, pàg. 313–331. arXiv: astro-ph/0706.0516. Bibcode: 2007ApJ...670..313S. DOI: 10.1086/521816.(anglès)