@article{ref1,
title="Factor analysis of 78 variables from nine personality tests and scales",
journal="Journal of projective techniques and personality assessment",
year="1969",
author="Spiegel, David and Keith-Spiegel, Patricia",
volume="33",
number="2",
pages="160-167",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-651X",
doi="",
url="http://dx.doi.org/"
}