@article{ref1,
title="Medio-lateral motion of the center of mass during obstacle crossing distinguishes elderly individuals with imbalance",
journal="Gait and posture",
year="2003",
author="Kaufman, K. R. and Chou, Li-Shan and Brey, Robert H. and Hahn, Michael E.",
volume="18",
number="3",
pages="125-133",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0966-6362",
doi="",
url="http://dx.doi.org/"
}