@article{ref1,
title="Safety on construction sites--employers and designers are now liable",
journal="Health estate",
year="1994",
author="Birkby, G.",
volume="48",
number="3",
pages="21-22",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0957-7742",
doi="",
url="http://dx.doi.org/"
}