@article{ref1,
title="Fire stops for plastic pipe",
journal="Fire technology",
year="1987",
author="Choi, K. K.",
volume="23",
number="4",
pages="267-279",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0015-2684",
doi="10.1007/BF01040584",
url="http://dx.doi.org/10.1007/BF01040584"
}