Fathivavsari, H., Petitjean, P., Zou, S., Noterdaeme, P., Ledoux, C., Krühler, T., & Srianand, R. (2017). A ghostly damped Ly α system revealed by metal absorption lines. Monthly Notices of the Royal Astronomical Society: Letters, 466(1), L58-L62. doi:10.1093/mnrasl/slw233.