@article{ref1,
title="Michigan's older residents : who drives and where do they go?",
journal="UMTRI research review",
year="2014",
author="",
volume="",
number="",
pages="-",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0739-7100",
doi="",
url="http://dx.doi.org/"
}