@article{ref1,
title="Objective measurement of motor skill acquisition",
journal="Physical therapy",
year="1973",
author="Brown, G. A. and Kuelling, B. L. and Dickson, J. M.",
volume="53",
number="8",
pages="864-866",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-9023",
doi="",
url="http://dx.doi.org/"
}