@article{ref1,
title="Road safety evaluation and target setting using data envelopment analysis",
journal="Proceedings of the Road Safety on Four Continents Conference",
year="",
author="Shen, Yongjun and Hermans, Elke and Brijs, Tom and Ruan, Da and Wets, Geert and Wanhoof, Koen",
volume="15",
number="",
pages="-",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="",
doi="",
url="http://dx.doi.org/"
}