@article{ref1,
title="Causes of juvenile criminality",
journal="Psychologische praxis",
year="1953",
author="Naf, H.",
volume="12",
number="",
pages="1-104",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0079-7413",
doi="",
url="http://dx.doi.org/"
}