@article{ref1,
title="Instrumentation in motor skills research",
journal="American psychologist, The",
year="1969",
author="Trumbo, D.",
volume="24",
number="3",
pages="289-292",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-066X",
doi="",
url="http://dx.doi.org/"
}