@article{ref1,
title="Differential velocity and time prediction of motion",
journal="Perceptual and motor skills",
year="1973",
author="Kimball, K. A. and Hofmann, M. A. and Nossaman, R. O.",
volume="36",
number="3",
pages="935-945",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}