@article{ref1,
title="Influence of alcohol and nocturnal fatigue",
journal="Zahnärztliche Mitteilungen",
year="1972",
author="Kloke, W.",
volume="62",
number="14",
pages="741-742",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-1643",
doi="",
url="http://dx.doi.org/"
}