@article{ref1,
title="States led in making Interstate Highway System a reality",
journal="Defense transportation journal",
year="2006",
author="Horsley, John",
volume="62",
number="3",
pages="12-14",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0011-7625",
doi="",
url="http://dx.doi.org/"
}