@article{ref1,
title="Must night shift be intolerable",
journal="Zeitschrift fuer Krankenpflege",
year="1976",
author="Kästle, H. R.",
volume="69",
number="8-9",
pages="272-272",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2941",
doi="",
url="http://dx.doi.org/"
}