@article{ref1,
title="Construction safety. Night time hazards",
journal="Occupational health and safety",
year="2002",
author="Laws, Jerry",
volume="71",
number="5",
pages="122-4, 126",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}