@article{ref1,
title="Growth of a motor skill as a function of distribution of practice",
journal="Journal of experimental psychology",
year="1959",
author="Digman, J. M.",
volume="57",
number="5",
pages="310-316",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1015",
doi="",
url="http://dx.doi.org/"
}