@article{ref1,
title="Multiple images as a function of LEDs viewed during vibration",
journal="Human factors",
year="1977",
author="Riley, T. M.",
volume="19",
number="1",
pages="79-82",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}