@article{ref1,
title="Postural control in the oldest olds",
journal="Advances in oto-rhino-laryngology",
year="1988",
author="Pyykko, I. and Jäntti, P. and Aalto, Heikki",
volume="41",
number="",
pages="146-151",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-3071",
doi="",
url="http://dx.doi.org/"
}