@article{ref1,
title="Prospects for Urban Road Pricing in Canada",
journal="Brookings-Wharton papers on urban affairs",
year="2008",
author="Lindsey, Robin and Zhang, Anming and Gómez-Ibáñez, José A.",
volume="",
number="",
pages="235-293",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1528-7084",
doi="",
url="http://dx.doi.org/"
}