@article{ref1,
title="Psychomotor performance and distribution of practice",
journal="Journal of experimental psychology",
year="1950",
author="Riopelle, A. J.",
volume="40",
number="3",
pages="390-395",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1015",
doi="",
url="http://dx.doi.org/"
}