@article{ref1,
title="Directions for Research on Adolescent Group Violence and Vandalism",
journal="British journal of criminology",
year="1971",
author="Cohen, Simon",
volume="11",
number="4",
pages="319-340",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0007-0955",
doi="",
url="http://dx.doi.org/"
}