@article{ref1,
title="Observed maternal behavior with four-year-old boys and girls in lower-class families",
journal="Child development",
year="1974",
author="Radin, N.",
volume="45",
number="4",
pages="1126-1131",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}