@article{ref1,
title="Visual adaptation: a case of nonlinear summation",
journal="Vision research",
year="1972",
author="Glantz, R. M.",
volume="12",
number="1",
pages="103-109",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}