@article{ref1,
title="Problems associated with the use of hearing protection",
journal="Annals of occupational hygiene",
year="1977",
author="Action, W. I.",
volume="20",
number="4",
pages="387-395",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4878",
doi="",
url="http://dx.doi.org/"
}