@article{ref1,
title="Adult perception of the horizontal",
journal="Perceptual and motor skills",
year="1964",
author="Rebelsky, Freda",
volume="19",
number="2",
pages="371-374",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0031-5125",
doi="10.2466/pms.1964.19.2.371",
url="http://dx.doi.org/10.2466/pms.1964.19.2.371"
}