@article{ref1,
title="Accidents in advanced age with reference to traffic accidents",
journal="Hefte zur Unfallheilkunde",
year="1975",
author="Winkler, W.",
volume="",
number="121",
pages="6-7",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}