Wuyts, S., van Dokkum, P. G., Franx, M., Förster Schreiber, N. M., Illingworth, G. D., Labbé, I., et al. (2009). Optical spectroscopy of distant red galaxies. The Astrophysical Journal, 706(1), 885-895. doi:10.1088/0004-637X/706/1/885.