@article{ref1,
title="Impalement injury of the heart",
journal="Medizinische Welt",
year="1973",
author="Ritter, G. and Mappes, G.",
volume="24",
number="47",
pages="1842-1845",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8512",
doi="",
url="http://dx.doi.org/"
}