Optical spectroscopy of two overlapping, flux-density-limited samples of radio sources in the North Ecliptic Cap, selected at 38 and 151 MHz
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 308:4 (1999) 1096-1116
The deepest spectrum of the universe? Constraints on the Lyman continuum background at high redshift
HY-REDSHIFT UNIVERSE: GALAXY FORMATION AND EVOLUTION AT HIGH REDSHIFT 193 (1999) 262-266
Seeking the Ultraviolet Ionizing Background at z~3 with the Keck Telescope
(1998)
Keck Spectroscopy and NICMOS Photometry of a Redshift z=5.60 Galaxy
(1998)