@article{ref1,
title="Lateral preference and ability to conserve multiple spatial relations by mentally retarded children",
journal="Perceptual and motor skills",
year="1972",
author="Kershner, J. R.",
volume="35",
number="1",
pages="151-152",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}