@article{ref1,
title="Staff behaviour in pre-school centres",
journal="Journal of child psychology and psychiatry",
year="1976",
author="Tizard, B. and Philps, J. and Plewis, I.",
volume="17",
number="1",
pages="21-33",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-9630",
doi="",
url="http://dx.doi.org/"
}