@article{ref1,
title="Work environment. Obligation for safety",
journal="Sygeplejersken",
year="1993",
author="Jensen, Jan",
volume="93",
number="37",
pages="4-6",
abstract="<p>[Abstract unavailable]</p> <p>Language: da</p>",
language="da",
issn="0106-8350",
doi="",
url="http://dx.doi.org/"
}