@article{ref1,
title="Safety criteria of noise exposure",
journal="Indian journal of medical research",
year="1982",
author="Chaturvedi, R. C. and Rai, R. M. and Sharma, R. K.",
volume="76",
number="",
pages="758-765",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0971-5916",
doi="",
url="http://dx.doi.org/"
}