@article{ref1,
title="Control knob arrangement can save aircraft instrument panel space",
journal="Journal of aviation medicine",
year="1957",
author="Bradley, J. V.",
volume="28",
number="3",
pages="322-327",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}