@article{ref1,
title="Effect of ability level upon retention of a balance skill after two years",
journal="Perceptual and motor skills",
year="1971",
author="Carron, A. V.",
volume="33",
number="2",
pages="527-529",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}