@article{ref1,
title="Portable aircraft hand controls",
journal="Physical therapy",
year="1973",
author="Ussher, B.",
volume="53",
number="5",
pages="516-518",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-9023",
doi="",
url="http://dx.doi.org/"
}