@article{ref1,
title="Morbidity and mortality of skull-brain traumas in a middle-sized industrial city. A 5 year study",
journal="Zentralblatt fur Neurochirurgie",
year="1981",
author="Willenberg, E. and Krumbholz, S. and Credo, J. and Wiswe, J. and Vitzthum, E.",
volume="42",
number="4",
pages="263-274",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4251",
doi="",
url="http://dx.doi.org/"
}