@article{ref1,
title="Big Biking Payoff: Alternative Transportation Could Net Midwest over $8 Billion",
journal="Environmental health perspectives",
year="2012",
author="Betts, Kellyn S.",
volume="120",
number="1",
pages="a34-a34",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0091-6765",
doi="10.1289/ehp.120-a34b",
url="http://dx.doi.org/10.1289/ehp.120-a34b"
}