@article{ref1,
title="A flight simulator test of an altitude-coded aircraft light",
journal="Journal of engineering psychology",
year="1963",
author="Robinson, J. E. Jr and Cook, K. G.",
volume="2",
number="1",
pages="15-21",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-085X",
doi="",
url="http://dx.doi.org/"
}