@article{ref1,
title="Effects of carbon monoxide on man and canaries",
journal="Annals of occupational hygiene",
year="1962",
author="Spencer, T. D.",
volume="5",
number="",
pages="231-240",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4878",
doi="",
url="http://dx.doi.org/"
}