@article{ref1,
title="Performance sports in growing females",
journal="Archives of gynecology and obstetrics",
year="1987",
author="Wolf, A. S.",
volume="242",
number="1-4",
pages="936-943",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0932-0067",
doi="",
url="http://dx.doi.org/"
}