@article{ref1,
title="The perception of visual angle",
journal="Acta psychologica",
year="1964",
author="McDermott, W and Rock, I.",
volume="22",
number="",
pages="119-134",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}