@article{ref1,
title="A spatial integration effect in visual acuity",
journal="Vision research",
year="1969",
author="Findlay, J. M.",
volume="9",
number="1",
pages="157-166",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}