@article{ref1,
title="Transportation overview",
journal="Rehabilitation record",
year="1972",
author="Bean, W.",
volume="13",
number="4",
pages="1-6",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0034-3587",
doi="",
url="http://dx.doi.org/"
}