@article{ref1,
title="Aggression and psychological development",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1992",
author="Amnell, G.",
volume="108",
number="3",
pages="240-245",
abstract="<p>[Abstract unavailable]</p><p>Language: fi</p>",
language="fi",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}