@article{ref1,
title="Coal mine noise standard. Enforcement under the provision of the Federal Coal Mine Health and Safety Act",
journal="American Industrial Hygiene Association journal",
year="1972",
author="Lamonica, J. A.",
volume="33",
number="11",
pages="761-765",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8894",
doi="",
url="http://dx.doi.org/"
}