@article{ref1,
title="Have psychiatric diseases become more prevalent?",
journal="Nervenarzt",
year="1985",
author="Hafner, H.",
volume="56",
number="3",
pages="120-133",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}