@article{ref1,
title="The problem of previous damage in expert opinions",
journal="Unfallchirurgie",
year="1981",
author="Ludolph, E. and Hierholzer, G.",
volume="7",
number="5",
pages="269-273",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0340-2649",
doi="",
url="http://dx.doi.org/"
}