@article{ref1,
title="Gender differences: a biosocial perspective",
journal="Nebraska symposium on motivation",
year="1984",
author="Ehrhardt, A. A.",
volume="32",
number="",
pages="37-57",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0146-7875",
doi="",
url="http://dx.doi.org/"
}