@article{ref1,
title="Tracking performance as a function of exponential delay and learning. Amrl-tr-64-104",
journal="Aerospace medical research laboratories technical reports",
year="1964",
author="Levine, Michael and Senders, J. W. and Morgan, R. L. and Doxtater, L.",
volume="",
number="",
pages="1-13",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0192-317X",
doi="",
url="http://dx.doi.org/"
}