@article{ref1,
title="Health education - basis of preventive medicine. IX. Health and leisure time",
journal="Krankenpflege: Fachzeitschrift des Agnes Karll-Verbandes für Krankenpflegeberufe",
year="1977",
author="Schauwecker, W.",
volume="31",
number="4",
pages="139-140",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0002-1008",
doi="",
url="http://dx.doi.org/"
}