@article{ref1,
title="Natural calamities",
journal="Indian journal of public health",
year="1972",
author="",
volume="16",
number="4",
pages="149-150",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0019-557X",
doi="",
url="http://dx.doi.org/"
}