@article{ref1,
title="Sleep and accident risk",
journal="Pneumologie",
year="2002",
author="Hein, H.",
volume="56",
number="1",
pages="11-12",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0934-8387",
doi="10.1055/s-2002-19571",
url="http://dx.doi.org/10.1055/s-2002-19571"
}