@article{ref1,
title="The problem of injury by implement",
journal="Langenbecks archiv fur klinische chirurgie",
year="1958",
author="Helmig, H.",
volume="196",
number="1",
pages="32-42",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0174-4542",
doi="",
url="http://dx.doi.org/"
}