@article{ref1,
title="Sport and hereditary constitution",
journal="Deutsche Medizinische Wochenschrift",
year="1955",
author="Grebe, H.",
volume="80",
number="5",
pages="185-186",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}