@article{ref1,
title="Delinquent regressive students",
journal="Psychologische praxis",
year="1961",
author="Schirm, W.",
volume="29",
number="",
pages="160-166",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0079-7413",
doi="",
url="http://dx.doi.org/"
}