@article{ref1,
title="Wheelchair bumpers",
journal="Archives of physical medicine and rehabilitation",
year="1974",
author="Luck, D. B. and Mercer, C. D. and Payne, J. S.",
volume="55",
number="3",
pages="141-141",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9993",
doi="",
url="http://dx.doi.org/"
}