@article{ref1,
title="The family backgrounds of aggressive youths",
journal="Journal of child psychology and psychiatry book supplement",
year="1978",
author="Farrington, David P.",
volume="",
number="1",
pages="73-93",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0164-1735",
doi="",
url="http://dx.doi.org/"
}