@article{ref1,
title="Simulated gravity: the aversive stimulus in an escape and punishment situation",
journal="Journal of engineering psychology",
year="1966",
author="Martin, R. C. and Richardson, W. K. and Martin, W. L.",
volume="5",
number="1",
pages="21-24",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-085X",
doi="",
url="http://dx.doi.org/"
}