@article{ref1,
title="Fractures of extremities in childhood, caused by sport and play",
journal="Wiener Medizinische Wochenschrift",
year="1972",
author="Arenz, I. and Kaiser, P.",
volume="122",
number="41",
pages="581-582",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0043-5341",
doi="",
url="http://dx.doi.org/"
}