@article{ref1,
title="Can traffic safety at the onset of twilight be improved?",
journal="Zentralblatt für Arbeitsmedizin, Arbeitsschutz, Prophylaxe und Ergonomie",
year="1984",
author="Koch, P. and Wagner, E.",
volume="34",
number="3",
pages="66-70",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0173-3338",
doi="",
url="http://dx.doi.org/"
}