@article{ref1,
title="The perception of relative movements of illuminated objects along the visual axis",
journal="British journal of physiological optics",
year="1961",
author="Potter, Beth",
volume="18",
number="",
pages="117-124",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1218",
doi="",
url="http://dx.doi.org/"
}