@article{ref1,
title="Hypersomnias--too rarely diagnosed correctly?",
journal="Deutsche Medizinische Wochenschrift",
year="1981",
author="Kuhl, W.",
volume="106",
number="20",
pages="635-636",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}