@article{ref1,
title="The use of directed routes for assessing escape potential",
journal="Fire technology",
year="1978",
author="Berlin, Geoffrey N.",
volume="14",
number="2",
pages="126-135",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0015-2684",
doi="10.1007/BF02308907",
url="http://dx.doi.org/10.1007/BF02308907"
}