@article{ref1,
title="Economy of highway median barriers",
journal="Traffic engineering",
year="1975",
author="Berry, David J. and Woods, D. L.",
volume="45",
number="3",
pages="9-12",
abstract="Some general trends and quantitative comparisons of the capital and maintenance costs of alternative median barriers are presented.   <p>Language: en</p>",
language="en",
issn="0041-0675",
doi="",
url="http://dx.doi.org/"
}