@article{ref1,
title="Cruelty to animals as a first step to sadistic crime of violence",
journal="Archiv für Kriminologie",
year="1971",
author="Krumbiegel, I.",
volume="148",
number="1",
pages="41-45",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0003-9225",
doi="",
url="http://dx.doi.org/"
}