@article{ref1,
title="Sleep, smoking and performance",
journal="Ergonomics",
year="1989",
author="O'Brien, C.",
volume="32",
number="10",
pages="i-ii",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}