@article{ref1,
title="Attempted suicide in Mannheim. Ecological multiple-level comparison",
journal="Monographien aus dem Gesamtgebiete der Psychiatrie",
year="1978",
author="Welz, R. and Klug, J. and Hafner, H. and Rey, E. R.",
volume="17",
number="",
pages="81-98",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0077-0671",
doi="",
url="http://dx.doi.org/"
}