@article{ref1,
title="Wheelchair karate",
journal="Geriatric nursing",
year="1989",
author="Portnoy, F. L. and Richards, C. and Roberts, R.",
volume="10",
number="2",
pages="76-77",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0197-4572",
doi="",
url="http://dx.doi.org/"
}