@article{ref1,
title="Dynamics of car crashes",
journal="International record of medicine and general practice clinics",
year="1956",
author="Mathewson, J. H.",
volume="169",
number="1",
pages="29-30",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0097-1650",
doi="",
url="http://dx.doi.org/"
}