@article{ref1,
title="Relation between sex-role identification and aggressive behavior among polish children",
journal="Aggressive behavior",
year="1985",
author="Kirwil, L and Fraczek, A",
volume="11",
number="2",
pages="157-158",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}