@article{ref1,
title="Disaster in History",
journal="Mass emergencies",
year="1977",
author="Barkun, M",
volume="2",
number="4",
pages="219-231",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0304-4114",
doi="",
url="http://dx.doi.org/"
}