@article{ref1,
title="The Psychopathy Checklist and non-violent offender groups",
journal="Criminal behaviour and mental health",
year="1992",
author="Haapasalo, J. and Pulkkinen, Lea",
volume="2",
number="4",
pages="315-328",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0957-9664",
doi="",
url="http://dx.doi.org/"
}