@article{ref1,
title="Sign registration in daytime and nighttime driving",
journal="Human factors",
year="1983",
author="Drory, A. and Shinar, David",
volume="25",
number="1",
pages="117-122",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}