@article{ref1,
title="Systematic treatment of depression",
journal="Versicherungsmedizin",
year="1999",
author="Fritze, J.",
volume="51",
number="2",
pages="87-88",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0933-4548",
doi="",
url="http://dx.doi.org/"
}