@article{ref1,
title="Motor vehicle acoustic noise reduction system",
journal="Journal of the Acoustical Society of America",
year="2012",
author="Campbell, Brett A.",
volume="131",
number="1",
pages="645-645",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-4966",
doi="10.1121/1.3677721",
url="http://dx.doi.org/10.1121/1.3677721"
}