@article{ref1,
title="Evaluation of noise problems anticipated with future vtol aircraft. AMRL-TR-66-245",
journal="Aerospace medical research laboratories technical reports",
year="1967",
author="Cole, J. N. and England, R. T.",
volume="",
number="",
pages="1-16",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0192-317X",
doi="",
url="http://dx.doi.org/"
}