Genel, S., Genzel, R., Bouché, N., Sternberg, A., Naab, T., Förster Schreiber, N. M., et al. (2008). Mergers and mass accretion rates in galaxy assembly: the millennium simulation compared to observations of z ≈ 2 galaxies. The Astrophysical Journal, 688(2), 789-793. doi:10.1086/592241.