@article{ref1,
title="Behavior problems in early adolescence",
journal="Child development",
year="1965",
author="Quay, H. C. and Quay, L. C.",
volume="36",
number="",
pages="215-220",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}