@article{ref1,
title="Head injuries. Problem patient No. 1 at the accident ward",
journal="Hefte zur Unfallheilkunde",
year="1972",
author="Winkler, R.",
volume="111",
number="",
pages="155-158",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}