@article{ref1,
title="Aggression in delinquent adolescents vs controls in northern Russia: Relations with hereditary and environmental factors",
journal="Criminal behaviour and mental health",
year="1998",
author="Ruchkin, Vladislav V. and Eisemann, M. and Hagglof, B and Cloninger, C. Robert",
volume="8",
number="2",
pages="115-126",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0957-9664",
doi="",
url="http://dx.doi.org/"
}