Gao, L., Theuns, T., Frenk, C., Jenkins, A., Helly, J., Navarro, J., …White, S. (2010). The earliest stars and their relics in the Milky Way. Monthly Notices of the Royal Astronomical Society, 403, 1283-1295. https://doi.org/10.1111/j.1365-2966.2009.16225.x