@article{ref1,
title="Long workdays versus restdays: assessing fatigue and alertness with a portable performance battery",
journal="Human factors",
year="1988",
author="Rosa, R. R. and Colligan, M. J.",
volume="30",
number="3",
pages="305-317",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}