@article{ref1,
title="Regulation of activity: an analytical tool for studying work-load in perceptual motor tasks",
journal="Ergonomics",
year="1978",
author="Teiger, C.",
volume="21",
number="3",
pages="203-213",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}