@article{ref1,
title="Sensorial aspects of helicopter operations",
journal="Rivista di medicina aeronautica e spaziale",
year="1978",
author="Rotondo, G.",
volume="41",
number="3-4",
pages="439-451",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0035-631X",
doi="",
url="http://dx.doi.org/"
}