@article{ref1,
title="Criminality Among 13 Swedish Birth Cohorts",
journal="British journal of criminology",
year="1983",
author="Von hofer, H and Lenke, Leif and Thorsson, Ulf",
volume="23",
number="3",
pages="263-269",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0007-0955",
doi="",
url="http://dx.doi.org/"
}