Savaglio, Sandra High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
McCarthy, P. J., Yan, H., Abraham, R. G., Mentuch, E., Glazebrook, K., Yan, L., et al. (2007). A compact cluster of massive red galaxies at a redshift of 1.5. Astrophysical Journal, 664(1 Part 2), L17-L21. doi:10.1086/520575.