@article{ref1,
title="Denial of suffering in the victim as a stimulus to violence in aggressive boys",
journal="Child development",
year="1974",
author="Perry, D. G. and Perry, L. C.",
volume="45",
number="1",
pages="55-62",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}