@article{ref1,
title="Relationships between some background factors and children's interpersonal attitude",
journal="Journal of genetic psychology",
year="1957",
author="Koppitz, E. M.",
volume="91",
number="1",
pages="119-129",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1325",
doi="",
url="http://dx.doi.org/"
}