@article{ref1,
title="Sleeping pill misuse and its prevention",
journal="Nervenarzt",
year="1968",
author="von Zerssen, Detlev and Stephan, E. and Kaiser, I.",
volume="39",
number="10",
pages="459-464",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}