@article{ref1,
title="Pathophysiology of post-traumatic cartilage damage",
journal="Hefte zur Unfallheilkunde",
year="1977",
author="Cotta, H.",
volume="",
number="129",
pages="217-226",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}