@article{ref1,
title="Chief psychiatric problems in old age",
journal="Internist",
year="2000",
author="Stoppe, G.",
volume="41",
number="6",
pages="538-543",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0020-9554",
doi="",
url="http://dx.doi.org/"
}