Angulo, R., Springel, V., White, S., Cole, S., Jenkins, A., Baugh, C., & Frenk, C. (2012). The journey of QSO haloes from z ∼ 6 to the present. Monthly Notices of the Royal Astronomical Society, 425(4), 2722-2730. https://doi.org/10.1111/j.1365-2966.2012.21783.x