@article{ref1,
title="Confined space hazards: death from carbon monoxide",
journal="Health of the people",
year="1973",
author="Brock, P. S.",
volume="7",
number="2",
pages="8-8",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0301-0384",
doi="",
url="http://dx.doi.org/"
}