@article{ref1,
title="Physics of traffic accident",
journal="Hefte zur Unfallheilkunde",
year="1969",
author="Fiala, E.",
volume="99",
number="",
pages="231-234",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}