@article{ref1,
title="Human responses to highway noise",
journal="Environmental research",
year="1973",
author="Ward, L. M. and Suedfeld, Peter",
volume="6",
number="3",
pages="306-326",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0013-9351",
doi="",
url="http://dx.doi.org/"
}