@article{ref1,
title="Objective signs of commotio cerebri",
journal="Wiener Klinische Wochenschrift",
year="1957",
author="Lechner, H.",
volume="69",
number="38-39",
pages="749-755",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0043-5325",
doi="",
url="http://dx.doi.org/"
}