@article{ref1,
title="The Conceptual Project in Child Variance",
journal="Journal of abnormal child psychology",
year="1974",
author="Head, S. and Rhodes, W. C.",
volume="2",
number="1",
pages="75-86",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-0627",
doi="",
url="http://dx.doi.org/"
}