@article{ref1,
title="Is competitive sport prejudicial to health?",
journal="Deutsche Gesundheitswesen",
year="1960",
author="Franke, K.",
volume="15",
number="",
pages="735-736",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0219",
doi="",
url="http://dx.doi.org/"
}