@article{ref1,
title="Bike boom: the unexpected resurgence of cycling",
journal="Transport reviews",
year="2019",
author="Parkin, John",
volume="39",
number="2",
pages="284-285",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0144-1647",
doi="10.1080/01441647.2017.1401681",
url="http://dx.doi.org/10.1080/01441647.2017.1401681"
}