@article{ref1,
title="The pre-accidental condition",
journal="Zeitschrift fur Unfallmedizin und Berufskrankheiten",
year="1970",
author="Fredenhagen, H.",
volume="63",
number="4",
pages="288-291",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-3603",
doi="",
url="http://dx.doi.org/"
}