Hubble Space Telescope Observations of the Gravitational Lens System B1422+231 Newer:Spectroscopy of Bright Quasars with the Hubble Space Telescope and Lyman-Alpha Absorption Lines in the Redshift Range 0.5 < Z < 1.7Older:The opacity of low surface brightness galaxies and their contribution to Quasar absorption PostedMay 1, 1996 AuthorChris Impey