@article{ref1,
title="Leisure activities of growing up girls",
journal="Arztliche Jugendkunde",
year="1975",
author="Richter, J.",
volume="66",
number="1",
pages="64-71",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0001-9518",
doi="",
url="http://dx.doi.org/"
}