@article{ref1,
title="Distance in stereoscopic vision: the three-point problem",
journal="Vision research",
year="1969",
author="Foley, J. M.",
volume="9",
number="12",
pages="1505-1521",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}