@article{ref1,
title="Visual search by automobile drivers",
journal="Human factors",
year="1972",
author="Clark, R. L. and Thurston, G. L. and Erickson, Darin J. and Robinson, G. H.",
volume="14",
number="4",
pages="315-323",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}