Optical and infrared observations of the luminous quasar PDS 456: a radio-quiet analogue of 3C 273?
(1999)
Journal Article
Simpson, C., Ward, M., O'Brien, P., & Reeves, J. (1999). Optical and infrared observations of the luminous quasar PDS 456: a radio-quiet analogue of 3C 273?. Monthly Notices of the Royal Astronomical Society, 303, L23-L28