@article{ref1,
title="Thoughts on gymnastics",
journal="Zahnärztliche Mitteilungen",
year="1971",
author="Medau, S.",
volume="61",
number="8",
pages="372 passim-372 passim",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-1643",
doi="",
url="http://dx.doi.org/"
}