Tanaka, M., Finoguenov, A., Mirkazemi, M., Wilman, D. J., Mulchaey, J. S., Ueda, Y., et al. (2013). An X-ray detected group of quiescent early-type galaxies at z = 1.6 in the Chandra Deep Field South. Publications of the Astronomical Society of Japan, 65(1), 17-1-17-22.