@article{ref1,
title="Cooperative development of work safety",
journal="Sairaanhoitaja",
year="1977",
author="Dietrich, H.",
volume="53",
number="3",
pages="22-23",
abstract="<p>[Abstract unavailable]</p><p>Language: fi</p>",
language="fi",
issn="0036-3278",
doi="",
url="http://dx.doi.org/"
}