@article{ref1,
title="Classification of physical activity in children using accelerometers",
journal="Journal of science and medicine in sport",
year="2009",
author="McGrath, L. and Hinckson, Erica Aneke",
volume="12",
number="Suppl 1",
pages="S8-S8",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1440-2440",
doi="10.1016/j.jsams.2008.12.022",
url="http://dx.doi.org/10.1016/j.jsams.2008.12.022"
}