Simon، Joshua D.؛ Geha, Marla (2007). "The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem". The Astrophysical Journal. ج. 670 ع. 1: 313–331. arXiv:0706.0516. Bibcode:2007ApJ...670..313S. DOI:10.1086/521816.
Simon، Joshua D.؛ Geha, Marla (2007). "The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem". The Astrophysical Journal. ج. 670 ع. 1: 313–331. arXiv:0706.0516. Bibcode:2007ApJ...670..313S. DOI:10.1086/521816.
Simon، Joshua D.؛ Geha, Marla (2007). "The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem". The Astrophysical Journal. ج. 670 ع. 1: 313–331. arXiv:0706.0516. Bibcode:2007ApJ...670..313S. DOI:10.1086/521816.