@article{ref1,
title="Prevention of knee injuries in athletics",
journal="Medizinische klinik (Munich, Germany : 1983)",
year="1956",
author="Idelberger, K.",
volume="51",
number="38",
pages="1587-1589",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0723-5003",
doi="",
url="http://dx.doi.org/"
}