@article{ref1,
title="Relationship between perception (input) and execution (output)",
journal="Perceptual and motor skills",
year="1969",
author="Friedrich, D. and Fuller, G. B. and Hawkins, E. F.",
volume="29",
number="3",
pages="923-934",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}