@article{ref1,
title="The unlit cigarette or cigar as a possible expedient gas mask",
journal="Environmental letters",
year="1974",
author="Kumana, J. D. and Lemlich, R.",
volume="6",
number="1",
pages="19-23",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0013-9300",
doi="10.1080/00139307409437341",
url="http://dx.doi.org/10.1080/00139307409437341"
}