@article{ref1,
title="Visual aids in landing under difficult conditions associated with sensory illusions",
journal="Aeromedica acta",
year="1954",
author="Ten doesschate, G. and Kylstra, J.",
volume="3",
number="",
pages="139-174",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0568-0549",
doi="",
url="http://dx.doi.org/"
}