@article{ref1,
title="Behaviour problems in the infant school: changes over two years",
journal="Journal of child psychology and psychiatry",
year="1974",
author="Chazan, M. and Jackson, S.",
volume="15",
number="1",
pages="33-46",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9630",
doi="",
url="http://dx.doi.org/"
}