@article{ref1,
title="Boyhood behaviour problems as precursors of criminality: a fifteen-year follow-up study",
journal="Journal of child psychology and psychiatry",
year="1981",
author="Mitchell, S. and Rosa, P.",
volume="22",
number="1",
pages="19-33",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9630",
doi="",
url="http://dx.doi.org/"
}