@article{ref1,
title="Classification Scheme for Evacuations",
journal="Disasters",
year="1978",
author="Perry, R. W.",
volume="2",
number="2-3",
pages="169-170",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0361-3666",
doi="",
url="http://dx.doi.org/"
}