@article{ref1,
title="The mental growth of the preschool child",
journal="Journal of abnormal and social psychology",
year="1926",
author="Kline, Linus Ward",
volume="21",
number="1",
pages="101-102",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0096-851X",
doi="10.1037/h0063995",
url="http://dx.doi.org/10.1037/h0063995"
}