@article{ref1,
title="Some effects of sleep deprivation on tracking performance in static and dynamic environments",
journal="Journal of applied psychology",
year="1977",
author="Collins, W. E.",
volume="62",
number="5",
pages="567-573",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9010",
doi="",
url="http://dx.doi.org/"
}