@article{ref1,
title="American standards for exhaust systems",
journal="American journal of public health",
year="1935",
author="Ainsworth, C",
volume="25",
number="6",
pages="703-706",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}