@article{ref1,
title="Prevention of suicide",
journal="Medizinische Monatsschrift",
year="1974",
author="Ringel, E.",
volume="28",
number="3",
pages="104-110",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8474",
doi="",
url="http://dx.doi.org/"
}