@article{ref1,
title="Crash!",
journal="Urban health",
year="1975",
author="Hamilton, H.",
volume="4",
number="4",
pages="18-19",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0191-8257",
doi="",
url="http://dx.doi.org/"
}