@article{ref1,
title="Perceptions of physical aggression in New Zealand secondary schools",
journal="New Zealand journal of educational studies",
year="2008",
author="Marsh, L. and McGee, R. and Nada-Kaja, S and Williams, S.",
volume="43",
number="2",
pages="89-104",
abstract="[Abstract unavailable]",
language="",
issn="0028-8276",
doi="",
url="http://dx.doi.org/"
}