@article{ref1,
title="VIII. Medical effects of aircraft noise: review and literature",
journal="International archives of occupational and environmental health",
year="1977",
author="Knipschild, P.",
volume="40",
number="3",
pages="201-204",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0340-0131",
doi="",
url="http://dx.doi.org/"
}