@article{ref1,
title="Development of the Highway Accident Hazard Index: Discussion",
journal="Journal of transportation engineering",
year="1988",
author="Andreassen, D.",
volume="114",
number="2",
pages="247-249",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0733-947X",
doi="",
url="http://dx.doi.org/"
}