@article{ref1,
title="Health hazards associated with work in confined spaces",
journal="Journal of Occupational Medicine",
year="1966",
author="Kleinfeld, M. and Feiner, B.",
volume="8",
number="7",
pages="358-364",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-1736",
doi="",
url="http://dx.doi.org/"
}