@article{ref1,
title="Overheight vehicle warning systems in mississippi",
journal="ITE journal",
year="1990",
author="Hanchey, C. and Exley, S.",
volume="60",
number="6",
pages="24-29",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0162-8178",
doi="",
url="http://dx.doi.org/"
}