@article{ref1,
title="Classifying accidents: A theoretical viewpoint",
journal="Traffic safety research review",
year="1962",
author="McGlade, F and Laws, FD",
volume="6",
number="1",
pages="2-8",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0564-0741",
doi="",
url="http://dx.doi.org/"
}