@article{ref1,
title="Aggression and autoaggression. Scientific symposium. Bonn, 6 July 1991",
journal="Nervenarzt",
year="1991",
author="",
volume="62",
number="9 Suppl",
pages="1-12",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}