@article{ref1,
title="Human frequency response as a function of visual feedback delay",
journal="Human factors",
year="1968",
author="Leslie, J. M. and Thompson, Darcy A.",
volume="10",
number="1",
pages="67-77",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}