@article{ref1,
title="Transportation policy",
journal="Milbank quarterly",
year="1991",
author="Katzmann, R. A.",
volume="69",
number="Suppl 1-2",
pages="214-237",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0887-378X",
doi="",
url="http://dx.doi.org/"
}