@article{ref1,
title="Is a "loss of balance" a control error signal anomaly? Evidence for three-sigma failure detection in young adults",
journal="Gait and posture",
year="2004",
author="Ahmed, A. A. and shton-Miller, JA",
volume="19",
number="3",
pages="252-262",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0966-6362",
doi="",
url="http://dx.doi.org/"
}