@article{ref1,
title="Automobile audio system",
journal="Journal of the Acoustical Society of America",
year="2012",
author="Ludwig, Christopher",
volume="131",
number="1",
pages="641-641",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-4966",
doi="10.1121/1.3677702",
url="http://dx.doi.org/10.1121/1.3677702"
}