@article{ref1,
title="Road Research",
journal="OR: Operational research quarterly (1953)",
year="1954",
author="Laboratory, Road Research",
volume="5",
number="2",
pages="50-54",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1473-2858",
doi="10.2307/3007492",
url="http://dx.doi.org/10.2307/3007492"
}