@article{ref1,
title="Vision at levels of night road illumination. V. Literature 1959",
journal="Highway Research Board bulletin",
year="1960",
author="Richards, Oscar W.",
volume="255",
number="",
pages="190-195",
abstract="A survey is presented of the technical literature concerned with night vision under six categories: (1) motorists' vision, (2) illumination, (3) glare, (4) vision, (5) color, and (6) research.<p />",
language="",
issn="0073-2206",
doi="",
url="http://dx.doi.org/"
}