@article{ref1,
title="Variable-height-powered wheelchair for the quadriplegic driver",
journal="Bulletin of prosthetics research",
year="1974",
author="Cunningham, D. M.",
volume="",
number="",
pages="337-369",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-506X",
doi="",
url="http://dx.doi.org/"
}