@article{ref1,
title="Cockpit visibility and contrail detection",
journal="Human factors",
year="1982",
author="Roscoe, Stanley N. and Hull, J. C.",
volume="24",
number="6",
pages="659-672",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}