@article{ref1,
title="Safety awareness. Visible safety",
journal="Occupational health and safety",
year="1999",
author="Guyer, M.",
volume="68",
number="3",
pages="77-79",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}