@article{ref1,
title="Performance and evoked potential measures of various states of daytime sleepiness",
journal="Sleep",
year="1982",
author="Broughton, R.",
volume="5",
number="Suppl 2",
pages="S135-46",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0161-8105",
doi="",
url="http://dx.doi.org/"
}