@article{ref1,
title="An Analysis of the Results Obtained by Retesting Juvenile Delinquents",
journal="Journal of psychology, The",
year="1939",
author="Mann, Cecil W. and Mann, Helene   Powner",
volume="8",
number="1",
pages="133-141",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0022-3980",
doi="10.1080/00223980.1939.9917656",
url="http://dx.doi.org/10.1080/00223980.1939.9917656"
}