@article{ref1,
title="Joint-cartilage lesions (author's transl)",
journal="Therapeutische Umschau Revue Therapeutique",
year="1976",
author="Ganz, P. and Jakob, R. P.",
volume="33",
number="6",
pages="440-444",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0040-5930",
doi="",
url="http://dx.doi.org/"
}