@article{ref1,
title="Experimental determination of the influence of roadway surfaces and obstacles on wheelchair stress",
journal="Biomedizinische Technik",
year="1983",
author="Munaf, M. and Wawrzinek, A. and Boenick, U.",
volume="28",
number="3",
pages="44-48",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0013-5585",
doi="",
url="http://dx.doi.org/"
}