@article{ref1,
title="Socio-hygienic and economic aspects of the state of accident frequency in East Germany",
journal="Zeitschrift fur Arztliche Fortbildung (Jena)",
year="1981",
author="Casper, W.",
volume="75",
number="19",
pages="918-923",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2178",
doi="",
url="http://dx.doi.org/"
}