@article{ref1,
title="Space perception-some physiological and psychological aspects",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1952",
author="Bannon, R. E.",
volume="29",
number="10",
pages="499-511",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}