@article{ref1,
title="Measurement of the Underlying Process in Perceptual Fluctuations",
journal="Vision research",
year="1962",
author="Ekman, G. and Lindman, R.",
volume="2",
number="3",
pages="253-260",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}