@article{ref1,
title="Smoke Characteristics of Coal-Lined Tunnel Fires",
journal="Fire and materials",
year="1981",
author="Cashdollar, KL and Singer, JM and Lee, Chi-Kang and Litton, Charles D.",
volume="5",
number="2",
pages="47-51",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0308-0501",
doi="",
url="http://dx.doi.org/"
}