@article{ref1,
title="The effect of background on the Zöllner illusion",
journal="Acta psychologica",
year="1966",
author="Wallace, G. K.",
volume="25",
number="4",
pages="373-380",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}