@article{ref1,
title="Studies on the suicide problem",
journal="Fortschritte der Neurologie, Psychiatrie, und ihrer Grenzgebiete",
year="1970",
author="Böcker, F. and Heitmann, R. and Stumpfe, K. D.",
volume="38",
number="7",
pages="341-348",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0015-8194",
doi="",
url="http://dx.doi.org/"
}