@article{ref1,
title="Parental permissiveness towards aggression in aggressive and nonaggressive schoolboys",
journal="Aggressive behavior",
year="1990",
author="Kirwil, L",
volume="16",
number="2",
pages="123-123",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}