Navarro, Julio F. Cosmology, MPI for Astrophysics, Max Planck Society;
Abadi, M. G., Navarro, J. F., & Steinmetz, M. (2006). Stars beyond galaxies: the origin of extended luminous haloes around galaxies. Monthly Notices of the Royal Astronomical Society, 365(3), 747-758. doi:10.1111/j.1365-2966.2005.09789.x.