@article{ref1,
title="Disorders of consciousness caused by brain injuries",
journal="Langenbecks archiv fur klinische chirurgie",
year="1956",
author="Pia, H. W.",
volume="281",
number="6",
pages="652-661",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0174-4542",
doi="",
url="http://dx.doi.org/"
}