@article{ref1,
title="The Tasks of Criminal Psychology",
journal="Journal of criminal law and criminology (1931-1951)",
year="1931",
author="Gruhle, HW",
volume="22",
number="4",
pages="506-516",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0885-2731",
doi="",
url="http://dx.doi.org/"
}