@article{ref1,
title="Concepts, principles, and objectives of economic analysis applicable to traffic accidents",
journal="Transportation research record",
year="1978",
author="Winfrey, Robley",
volume="680",
number="",
pages="40-50",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}