@article{ref1,
title="Changes of suicide rate curves in various population groups",
journal="Nervenarzt",
year="1972",
author="Böcker, F.",
volume="43",
number="11",
pages="574-577",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}