@article{ref1,
title="Accidents in gymnastics",
journal="Schweizerische Zeitschrift fur Sportmedizin",
year="1976",
author="Biener, K. and Fasler, S. and Villiger, B.",
volume="24",
number="4",
pages="239-253",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0036-7885",
doi="",
url="http://dx.doi.org/"
}