@article{ref1,
title="Perception of tilting",
journal="Aerospace medicine",
year="1962",
author="Kylstra, J.",
volume="8",
number="",
pages="127-134",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}