@article{ref1,
title="Working environment--a harsh working place",
journal="Sygeplejersken",
year="1991",
author="Christensen, J. B.",
volume="91",
number="15",
pages="16-18",
abstract="<p>[Abstract unavailable]</p> <p>Language: da</p>",
language="da",
issn="0106-8350",
doi="",
url="http://dx.doi.org/"
}