@article{ref1,
title="Development of occupational safety",
journal="Sairaanhoitaja",
year="1975",
author="Louhisto, V.",
volume="50",
number="15",
pages="16-17",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0036-3278",
doi="",
url="http://dx.doi.org/"
}