@article{ref1,
title="Heavy traffic ahead: car culture accelerates",
journal="Environmental health perspectives",
year="2005",
author="Dahl, Richard",
volume="113",
number="4",
pages="A238-45",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-6765",
doi="",
url="http://dx.doi.org/"
}