@article{ref1,
title="Some debates in the broadening coverage of health and safety at work",
journal="Policy and practice in health and safety",
year="2007",
author="Walters, David",
volume="5",
number="2",
pages="1-2",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1477-3996",
doi="",
url="http://dx.doi.org/"
}