@article{ref1,
title="Aggression in our society. I. On aggression in groups",
journal="Medizinische Welt",
year="1979",
author="Haase, H. J.",
volume="30",
number="44",
pages="1654-1657",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8512",
doi="",
url="http://dx.doi.org/"
}