@article{ref1,
title="Most frequent causes and mechanisms of brain injuries in traffic accidents",
journal="Patologia Polska",
year="1974",
author="Powiertowski, H.",
volume="25",
number="3",
pages="329-338",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0031-3114",
doi="",
url="http://dx.doi.org/"
}