@article{ref1,
title="The emotional, social and cognitive development of children from two to five years",
journal="Journal of the Singapore Paediatric Society",
year="1979",
author="Cheng, A. C.",
volume="",
number="Suppl",
pages="49-51",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0037-5683",
doi="",
url="http://dx.doi.org/"
}