@article{ref1,
title="Economic regulation vs safety regulation of the trucking industry: Which more effectively promotes safety?",
journal="Transportation quarterly",
year="1991",
author="Phillips, KB and Mccutchen, JA",
volume="45",
number="3",
pages="323-340",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0278-9434",
doi="",
url="http://dx.doi.org/"
}